Simple Green cares about providing safer cleaning choices, offering a wide variety of cutting-edge cleaning products for both home & industrial use. We're dedicated to producing environmentally-friendly formulas for virtually any cleaning need, and proud of the work we do to meet or exceed all federal health & safety requirements.

Find informative answers to all your questions about Simple Green products in the Simple Green F.A.Q. below.

Do you have a Simple Green inquiry that's not addressed here? Please contact us via email or phone at (800)228-0709.

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A
▶ Agitation — Why is agitation required for water based cleaners?
Agitation puts fresh cleaner in contact with soils so that cleaning happens faster and better. Some form of agitation is required when using an aqueous-based cleaner. Agitation can be accomplished through re-circulation, spraying, scrubbing by hand and use of mechanical equipment.
▶ Aircrafts — Is Simple Green All-Purpose Cleaner safe for cleaning aircraft?
Simple Green manufactures a product specifically designed for use on aircraft - Extreme Simple Green Aircraft & Precision Cleaner. This product was initially developed for use in the aircraft industry and extensive testing shows it to be safe for use on aluminum, plastics, rubber, and high tech alloys, in both normal and extreme temperatures and stress conditions. Extreme Simple Green passed a variety of aircraft industry tests. Data is available upon request at SimpleGreen.com/contact-us or by calling Consumer Relations at (800) 228-0709.
▶ Alkaline — What is an alkaline aqueous solution?
Alkaline aqueous solutions are water-based mixtures with a pH greater than 7. Most of these types of cleaners range from a pH of 10 to 14. Simple Green All-Purpose Cleaner is a water-based cleaner with a pH of 8.5 to 9.5. Alkaline aqueous solutions are the most common solutions in water based cleaning. These often contain additives to improve cleaning, such as mineral and metal sequestering agents, emulsifiers and surfactants. Corrosion inhibitors may be necessary with some metals, especially aluminum.

Alkaline aqueous solutions remove foods, fats, grease, coolants, cutting oils, dirt, fingerprints, cosmoline, some water-soluble paints and more. They are also used with all types of liquid processes, e.g., spray, ultrasonic, immersion and power washers. These solutions can clean to very high levels, with good filtration and rinsing. Cost per gallon is generally less than for semi-aqueous cleaners.
▶ Alkaline — What are high-alkaline, water-based cleaners, and are they hazardous?
The cleaning principle of these products is that the alkaline (high pH) strips the oil from the substrate (surface) and floats it on top of the water, thus allowing re-deposition of oil on the substrate (resulting in poor rinse ability.) Other problems with this type of aqueous cleaner is that higher alkalinity often creates health and safety issues (i.e., chemical burns, choking vapors, the need for costly protective equipment, disposal difficulties, etc.) High-alkaline cleaners also cause problems for sewage treatment plants.
▶ Aluminum — Is it safe to use Simple Green All-Purpose Cleaner on aluminum?
When used with caution and according to the instructions, Simple Green All-Purpose Cleaner has been safely and successfully used to clean aluminum. Simple Green All-Purpose Cleaner, Crystal Simple Green Industrial Cleaner & Degreaser, and Simple Green Pressure Washer Concentrates have been used on aircraft, automotive, industrial and consumer aluminum items for over 20 years. However, caution and common sense must be used: aluminum is a soft metal that easily corrodes with unprotected exposure to water. The aqueous-base and alkalinity of Simple Green All-Purpose Cleaner can accelerate the corrosion process.

Therefore, contact times for unprotected or unpainted aluminum surfaces should be kept as brief as the job will allow - never for more than 10 minutes. Large cleaning jobs should be conducted in smaller-area stages to achieve lower contact time. Rinsing after cleaning should always be extremely thorough - paying special attention to flush out cracks and crevices to remove all Simple Green product residues. Unfinished, uncoated or unpainted aluminum cleaned with Simple Green products should receive some sort of protectant after cleaning to prevent oxidation.

Simple Green has also developed break-through water based cleaners that are safe for use on metals, plastics, rubber and high tech alloys. Extreme Simple Green Aircraft & Precision Cleaner, Pro Series Simple Green Automotive Cleaner, and Simple Green Pro HD are available on both the industrial and retail markets, respectively. These products were initially developed for the aircraft industry and extensive testing shows that they are safe and effective on a variety of metals and other sensitive surfaces even in the most extreme circumstances.

Simple Green Stainless Steel One Step Cleaner & Polish is another option for cleaning polished aluminum. This product is designed for light duty metal cleaning and polishing.
▶ Ammonia — Does Simple Green All-Purpose Cleaner contain ammonia?
No, Simple Green All-Purpose Cleaner does not contain ammonia.
▶ Animals — Does Simple Green test on animals?
Since the early 1990's, Sunshine Makers, Inc. (the makers of Simple Green brand products) has not conducted any mammalian testing, and does not perform animal testing for its products on any ongoing basis. When a new product is introduced, non-mammalian test methods are done by third-party laboratories in order to assure consumers and regulatory agencies of the safety of the product. On occasion, aquatic toxicity testing has been done on fish because the nature of our product causes it to come into contact with the aquatic environment during disposal. While non-fish aquatic toxicity assessments exist, we choose those tests that are preferred by the EPA's Safer Choice program, consisting of fish, crustacean, and algae tests. However, these tests are also not performed on any ongoing basis.

During our 40 year history, Simple Green All-Purpose Cleaner has been used all over the world to save lives of birds and mammals caught in oil spills and chemical lagoons, because it enables them to be cleaned and then returned to the wild with minimal stress and no ill effects. Simple Green has also been used to maintain safe and clean environments for mammals, birds, and fish that are temporary guests of veterinary clinics and wildlife rehabilitation centers (such as the World Bird Sanctuary, The Marine Mammal Stranding Center, and the Dolphin Rescue Center,) as well as for those animals that are permanent residents of zoos, aviaries, and aquatic centers (the National Zoo, Shedd Aquarium, Wellington Zoo, and the Monterey Bay Aquarium are a few examples.)
▶ Animals — Is Simple Green All-Purpose Cleaner safe for use around my pets?
Yes, Simple Green All-Purpose Cleaner is safe for use around pets. Of course, we do recommend using common sense caution when using in pet areas. Pets should be removed from the immediate cleaning area. Never leave puddles or containers of cleaning solution where pets or wildlife can drink, because, due to its detersive properties, Simple Green can cause upset stomachs and diarrhea. See our cleaning tips for specific uses around pets, livestock and even birds
▶ Applications — Where can I use Simple Green All-Purpose Cleaner?
Simple Green All-Purpose Cleaner can be used for over 200 different applications. For a complete list of uses and the different dilution ratios for each use, please download our Household Applications/Dilution Ratio Chart or our Industrial Applications/Dilution Ratio Chart. Downloading or reading these charts requires Adobe Acrobat Reader. Or contact Consumer Relations at 800-228-0709 and request a free "Dilution Chart." Simple Green is not recommended for use on suede, leather, unfinished wood, opals or pearls.

B
▶ Batch Codes — How To Find and Read Batch Codes

Trigger spray and half-gallon bottles typically have batch codes stamped on the back label, between two paragraphs of label text.
Gallon and 140-ounce bottles typically have the batch code stamped directly onto the bottle, below where the label ends, but not underneath.
2.5, 5, 15, 55, and 275 gallon containers typically have the code printed on a sticker that is affixed to the front label to the left of the Simple Green logo.
Wipes and Towel Canisters typically have the batch code stamped directly on the container below where the label ends but not underneath.
Aerosols have the batch code printed on the underside of the can.
Scrubbing Pads and Hand Gel tubes typically have the batch code printed on the crimp of the closure.

Liquids & Aerosols
Batch Coding: Stamped code on all packages or labels can be read as follows: LL-Y-JJJ-BBB S or LL-YY-JJJ-BBB S
LL indicates the location of manufacture;
Y indicates the last digit of the year manufactured (6 = 2016, 7 = 2017, 0 = 2020);
YY indicates the last two digits of the year manufactured (16 = 2016, 17 = 2017, 21 = 2021);
JJJ indicates the Julian date for the year it was manufactured (001 = January 1st, 030 = January 30th);
BBB indicates the batch manufactured for the year (001 = 1st batch, 039 = 39th batch);
S indicates different production shifts within the day. (First shift is blank; second shift is "A", third shift is "B", etc.)

Wipes & Towels
Batch Coding: Stamped code on all packages or labels can be read as follows: CCCC YYJJJS
CCCC Product Code assigned by wipes converter to the overall finished good
YY Last two digits of the year product was made
JJJ Julian date on which product was made
S Production shifts within the day. (First shift is blank; second shift is "A", third shift is "B", etc.)

Scrubbing Pads & Gels
Batch Coding: Stamped code on all packages or labels can be read as follows: LL-YY-JJJ-BBB
LL is the location it was made;
YY is the last two digits of the year it was made;
JJJ is the Julian date for that year;
BBB is the batch produced in that year.
For example : GB21015005 was made at the GB location, in 2021, January 15, batch #5

Pod
Batch Coding: Stamped code on all packages or labels can be read as follows: LL-YY-JJJ-BBBB
YY indicates the last two digits of the year manufactured (22 = 2022);
JJJ indicates the Julian date for the year it was manufactured (001 = January 1st, 030 = January 30th);
BBBB indicates the batch manufactured for the year (001 = 1st batch, 039 = 39th batch);
▶ Biodegradable — Is Simple Green All-Purpose Cleaner biodegradable?
Yes. Simple Green All-Purpose Cleaner is readily decomposed by naturally occurring microorganisms. Simple Green meets the Organization for Economic Cooperation and Development's (OECD) requirements for ready biodegradability. ("Ready" biodegradability is the highest biodegradable classification that a product can achieve.)
▶ Biodegradable — What is the definition of biodegradable?
Biodegradable means capable of being decomposed back into elemental components by biological agents, especially bacteria. Biodegradability is associated with the use of a substance as a nutrient source by an organism within the environment.
▶ Bleach — Can I mix Simple Green All-Purpose Cleaner with bleach?
No. We don't recommend mixing bleach with any Simple Green products because mixing will detract from the cleaning ability of our formulas. You will achieve better cleaning results if Simple Green products are used separately from bleach. Clean with Simple Green first, then disinfect or whiten with bleach after.

C
▶ Chlorofluorocarbons (CFCs) — Do Simple Green products contain CFCs?
No. The Montreal Protocol and the U.S. Clean Air Act Sections 602 and 611, and various international agreements outline the reduction in use and the ultimate elimination of chlorofluorocarbons (CFCs), hydro chlorofluorocarbons (HCFCs), halons and other ozone depleting chemicals. Simple Green products contain no ozone depleting substances (See Montreal Protocol, U.S. Clean Air Act and Ozone Depleting)
▶ Citrus — Do Simple Green products contain any citrus ingredients?
Simple Green does not use citrus ingredients as cleaning agents within our products. However, some of the fragrances in Simple Green products and several of the essential oil blends for Simple Green Naturals products contain tiny amounts of citrus oils as scent agents.
▶ Clean Air — What is the Clean Air Act of 1990?
The Act required total elimination of CFC's - Class I ozone-depleting chemicals (ODC's) - by the end of 1995. Simple Green is a safer replacement for cleaners and solvents prohibited by the U.S. Clean Air Act
▶ Company — Is Simple Green a public or privately held company?
Simple Green is a privately held company.
▶ Company — Are Simple Green products made in the USA?
Sunshine Makers, Inc. has been manufacturing Simple Green products in the USA for over 35 years. We are proud of our American manufacturing heritage and have always made note of it on our product labels. We do not utilize any offshore outsourced production for Simple Green products sold in the USA. Production facilities for our domestic products are located in: Sylacauga, Alabama, Chino, Gardena, Garden Grove, and San Marcos, California, Lawrenceville, Georgia, Wiscasset, Maine, Holland, Michigan, and Olive Branch, Mississippi. We do produce some products outside of the USA for our international customers and they are not brought back into the USA for sale.

Simple Green products that are sold in the USA are assembled 100% in the USA at the facilities listed above. We utilize USA-made ingredients and source USA-made components for our products. If a particular ingredient is not viable for purchase in the USA, due to unforeseen acts of nature or force majeure, we have on occasion been forced to source it from a trade-friendly country. We are of the opinion that in those rare occurrences, it has been an insignificant portion to the overall product composition; that, we can maintain "All or virtually all" US origin product. As soon as normal US sourcing is made available, off-shore components are replaced with domestic.
We make this claim on a reasonable belief - and rely on - that as we negotiate our manufacturing and supply chain sources; we are reaffirming that those sources are of domestic origin. This good faith reliance has allowed Sunshine Makers, Inc. to faithfully say "Made in the USA" for over 35 years.
▶ Compare — What products can I replace with Simple Green All-Purpose Cleaner?
Solvents, evaporative, petroleum-based, citrus cleaners or other hazardous solvents, task-specific cleaners, window cleaners and many more…

D
▶ Defoamers — Is Simple Green All-Purpose Cleaner a foaming cleaner?
Foaming is a built-in feature of Simple Green All-Purpose Cleaner, which actually enhances the cleaning process. There are certain applications, however, where defoamers may need to be added to Simple Green All-Purpose Cleaner in order to inhibit excessive foaming (for example, equipment with enclosed, high-pressure systems such as spray cabinets & carpet cleaning). For more information please call the Simple Green Technical Department at 800-228-0709.

A word of caution: when adding foreign material into Simple Green All-Purpose Cleaner, be aware that biodegradability, toxicity and disposal issues need to be addressed by the additive manufacturer.

▶ Detergent — What is a detergent?
A detergent is a surfactant or a mixture of surfactants with "cleaning properties in dilute solutions." These substances are similar to soap but are more soluble in hard water.
▶ Diethanolamine — Does Simple Green contain Diethanolamine?
Most Simple Green products do NOT contain any amount of Diethanolamine. Our popular All-Purpose Cleaners and most of our Industrial Cleaners and Degreasers to NOT contain Diethanolamine or require a Prop 65 warning. While none of our products are intentionally formulated with Diethanolamine, a few of our specialty products do use Triethanolamine as a grease-cutting agent. Diethanolamine is a trace contaminant of Triethanolamine, meaning it can be found in very low (or "trace") levels in Triethanolamine. Because of this, we have chosen to include a Prop 65 warning for Diethanolamine on select products.

Some companies believe that if their product contains less than 0.1% of a Prop 65 chemical, they do not need to put a warning on their product. While our products fall well below that threshold, we do not agree with that policy. Instead we want to ensure as much transparency as possible for our customers.

Even prior to Prop 65 restrictions on Diethanolamine, we have intentionally sourced Triethanolamine containing as little Diethanolamine as possible and strictly limited the amount of Triethanolamine used in our formulas.

Certificates of Analysis for the Triethanolamine used in Simple Green products typically list a level of Diethanolamine around 0.04%. When this small amount is added to all other ingredients, the level of potential Diethanolamine in a product is typically less than 0.004%. Some of those products are concentrates which require users to dilute the product with water, bringing the levels of Diethanolamine down even further.

A Safe Harbor Level is the regulatory level of a chemical a person can be exposed to daily without significant risk of cancer or reproductive harm. The Safe Harbor Level for Diethanolamine has not yet been determined. Simple Green products which contain any amount of Diethanolamine, even so small that it is undetectable in lab tests, will continue to feature a Prop 65 warning on the product label, to ensure our consumers are aware of the ingredients in the products they choose to purchase.

▶ Dilutions — How to measure 1:1, 1:10, and 1:30
The dilution ratios for Simple Green All-Purpose Cleaner are our suggestions for certain applications. The first number is the cleaner, and the second number is the water. Exact measurements are not necessary to achieve excellent performance and maintain safety.

1:1 - equal parts cleaner and water

1:8 - about 1 oz. cleaner per cup of water

1:32 - about 1 oz. cleaner per 1 quart of water

For a complete list of uses and the different dilution ratios for each use, please download our Household Applications/Dilution Ratio Chart or our Industrial Applications/Dilution Ratio Chart. Downloading or reading these charts requires Adobe Acrobat Reader or call 800-228-0709 and request a free "Dilution Chart."
▶ Dilutions — Why are the ratios given in parts?
The dilution ratios are given in parts and not exact measurements because: (1) it allows for larger volume uses; (2) Simple Green is an international product and this allows for the use of the metric system; and (3) it allows one to use any form of measuring device (cup, teaspoon, quart, etc.)
▶ Disposal — Are there special requirements for disposing of Simple Green All-Purpose Cleaner?
Disposal regulations require that only unused product or small amounts of typical household effluent can go into any sanitary sewer system. Depending on what types of soils you are cleaning, the resulting used Simple Green solution may not be suitable for sewage disposal. Check with your local POTW (Publicly Owned Treatment Works) before disposing large amounts of effluent into sanitary sewer drains. Do not dispose of anything other than water or an EPA Safer Choice Direct Release product down a storm drain or into an open waterway.
▶ Disposal — Can Simple Green products be disposed of in a storm drain?
Only EPA Safer Choice Direct Release-designated Simple Green Oxy Solve products can be disposed of in a storm drain. The Clean Water Act of 1995 protects surface and ground water quality by forbidding any foreign material from being put down storm drains. Do not dispose of degreasing rinsates into or near storm drains.

E
▶ Economical — What makes Simple Green All-Purpose Cleaner economical?
Most cleaning jobs are effectively performed at the general cleaning dilution ratio of 10-30 parts water to one part of Simple Green

You can also refer to our Cleaning Tips under our All-Purpose Cleaner in the Household Products section.
▶ Emulsifier — What is an emulsifier?
An emulsifier is an ingredient used to combine fats and oils with an aqueous solution and keep these soils dispersed throughout the cleaning fluid.
▶ EPA — What is the EPA National Contingency Plan? Are Simple Green products listed?
The National Oil and Hazardous Substances Pollution Contingency Plan, more commonly called the National Contingency Plan or NCP, is the federal government's blueprint for responding to both oil spills and hazardous substance releases. Simple Green All-Purpose Cleaner is on the U.S. Environmental Protection Agency's NCP Product Schedule as a surface washing agent. This listing does NOT mean that EPA approves, recommends, licenses, certifies, or authorizes the use of Simple Green All-Purpose Cleaner on an oil discharge. The listing means only that data has been submitted to EPA as required by subpart J of the National Contingency Plan, 300.915. (Source 40 CFR section 300.920(e)).
▶ Evaporation — What is the evaporation rate of Simple Green All-Purpose Cleaner?
Simple Green evaporates at the same rate as water.
▶ Expiration — What is the shelf life of Simple Green products?
The majority of Simple Green products have a 5 year shelf life. Simple Green aerosols have a two year shelf life. Simple Green disinfectants have a 12 month shelf life.

F
▶ Fragrance — What type of fragrance does Simple Green products use?
Simple Green products contain both synthetic and natural fragrances, all of which meet the standards set by the International Fragrance Association.

G
▶ Glass — Can Simple Green All-Purpose Cleaner be used on glass?
Simple Green All-Purpose Cleaner and Crystal Simple Green Industrial Cleaner & Degreaser should be diluted at 1 part cleaner to 150 parts water to before use on glass, mirrored or reflective surfaces (Tip: add 1 teaspoon of cleaner to a 24 or 32 oz. spray bottle and fill the rest with water). If used too strong, filmy, streaky or hazy marks can result. First, attempt to remove this by wiping down the surface with a clean, non-abrasive cloth and very hot water. If the problem persists, toothpaste will remove stubborn residue.

I
▶ Ingredients — What are the ingredients in Simple Green All-Purpose Cleaner?
Water, Alcohols C9-C11, ethoxylated, Sodium citrate, Sodium carbonate, Tetrasodium glutamate diacetate, Citric acid, Mixture, containing 5-Chloro-2-methyl-2H-isothiazol-3-one and 2-Methyl-2H-isothiazol-3-one (3:1), Liquitint polymeric colorant, IFRA-compliant Sassafras fragrance (see fragrance palette at SimpleGreen.com/fragrances)

Simple Green All-Purpose Cleaner does not contain chlorine (bleach), ammonia, formaldehyde, phosphates or petroleum distillates.

A Note about Ingredients: In late 2012, Sunshine Makers, Inc. implemented the results of a 4-year reformulation project, and changed the formula of Simple Green to what is listed above. This was done to comply with 2013 California air quality regulations. We conducted testing to confirm that the new formulation is every bit as efficacious as the prior formula, and that it is safer for the user and the environment. For more information about this, please see the 2013 MSDS, and data at SimpleGreen.com/claims.

▶ Ingredients — Is Simple Green All-Purpose Cleaner a natural product? Does it contain natural ingredients?
Simple Green All-Purpose Cleaner is not considered "natural." It is a blend of synthetic and naturally-derived ingredients. Simple Green lists ingredients at SimpleGreeen.com/safer-choice.php and on its Safety Data Sheet.
▶ Ingredients — Sodium Lauryl Sulfate (SLS) and Sodium Laureth Sulfate (SLES)
The Cosmetic, Toiletry, and Fragrance Association (CTFA) and the American Cancer Society have stated that the common belief that SLES and SLS are carcinogens is an urban legend, a view confirmed by toxicology research by the Occupational Health and Safety Administration (OSHA), National Toxicology Program (NTP), and International Agency for Research on Cancer (IARC). SLES, and subsequently some of the products containing it, has sometimes been found to contain parts-per-thousand to parts-per-million levels of 1,4-dioxane, with the recommendation that these levels be monitored. The U.S. Environmental Protection Agency considers 1,4-dioxane to be a probable human carcinogen (having observed an increased incidence of cancer in controlled animal studies, but not in epidemiological studies of workers using the compound), and a known irritant (with a no-observed-adverse-effects level of 400 milligrams per cubic meter). While the U.S. Food and Drug Administration encourages manufacturers to remove this contaminant, it is not currently required by federal law.

The ingredients within our products have been screened to make sure that we are utilizing those that are strongly filtered so that they contain little-to-no 1,4 dioxane. We closely monitor these ingredients and constantly seek to utilize the safest alternatives available. While Laureth-6 and Laureth-7, also found within some of our Naturals products, are not part of the SLES family, they are ethoxylated ingredients with potential to contain 1,4 dioxane if not filtered. We monitor them as well to be sure that they do not carry 1,4 dioxane into our products.
▶ Inhalation — Is inhaling Simple Green All-Purpose Cleaner hazardous to my health?
Simple Green All-Purpose Cleaner contains surfactants (surface-active-agents) which have the ability to lift grease, oil and soils up off of surfaces. If an excessive amount of mist is breathed in, those surfactants can aggravate the mucous membranes of the nose and throat. This can cause sore throat, sore nose, sore sinuses, coughing and -in rare cases of extreme overexposure- a tightness in the chest. Although uncomfortable, Simple Green All-Purpose Cleaner is non-hazardous and these are completely reversible symptoms. Persons with chronic asthma, emphysema, or other lung conditions should take precautions and avoid breathing in surfactant mists from any cleaning products.

Care should be taken when spraying Simple Green All-Purpose Cleaner above the level of one's head, or using mechanical applicators that create mist (pressure sprayers, steam cleaners, etc.) Additionally, Simple Green products are sold in spray bottles that create a coarse droplet spray that is not easily inhaled. If using a spray bottle other than a Simple Green spray bottle, take care not to breathe in mist. Use Simple Green products in ventilated areas or position a fan into non-ventilated areas. In more extreme cases or cases of impaired lung condition, use a fiber painter's mask (found in hardware and home improvement stores) to reduce the risk of inhalation problems.

L
▶ Laminate — Is Simple Green All-Purpose Cleaner safe for use on laminate flooring and other laminate surfaces?
When used according to directions, Simple Green All-Purpose Cleaner is safe and effective for use on laminate. See "cleaning tips" for details on cleaning laminate surfaces with Simple Green.
▶ Laundry — Can Simple Green All-Purpose Cleaner be used in the laundry?
Simple Green All-Purpose Cleaner can be used as an additive or to pre-treat stains on greasy or heavily soiled laundry fabric. For use in a conventional washing machine, add 1/4 cup of Simple Green while the washing machine is filling, then add clothes.

To pre-treat, wet the spot or collar with water and spray on full-strength Simple Green. Launder immediately.

Simple Green All-Purpose Cleaner is not recommended for use as an additive in High Effeciency (HE) machines but can be used to pre-treat stains and then washed in HE machines. We do also offer a specially formulated Laundry Detergent.

O
▶ Ozone — Do any Simple Green products contain CFCs or ozone depleting substances?
No. All Simple Green products are CFC-free and utilize a non-CFC butane & propane propellant. The Montreal Protocol and the US Clean Air Act, Sections 602 and 611, and various international agreements outline the reduction of use, and ultimately the elimination of chlorofluorocarbons (CFCs), hydro chlorofluorocarbons (HCFCs), halons and other ozone depleting chemicals. Simple Green products do not contain any ozone depleting substances.
▶ Ozone — What causes the destruction of the ozone layer, and why is this important?
The ozone layer shields the earth from ultraviolet radiation harmful to biological life. This destruction of ozone is caused by the breakdown of certain compounds containing chlorine and/or bromine (chlorofluorocarbons or halons) which then reach the stratosphere and catalytically destroy ozone molecules (see Chlorofluorocarbons, Montreal Protocol and U.S. Clean Air Act). Simple Green contains no ozone depleting substances.

P
▶ Packaging — What type of plastic packaging does Simple Green use?
Simple Green is being packaged in PETE (Polyethylene Terephthlate) and HDPE (High Density Polyethylene). Trigger Sprayer tops are made out of 80% Polypropylene and 20% HDPE. Our wipes come on a cellulose-polypropylene or pure polypropylene substrate. Our scrubbing pad is a non-woven polyester.
▶ Packaging — Does Simple Green use Styrofoam in packaging?
We do not use Styrofoam in our packaging; we use cornstarch packing, which is biodegradable.
▶ Parts Washers — What if my parts washer or dip tank begins to smell bad?
If you are experiencing foul odors from your dip tank or parts washer, you may have a bacterial contamination. Please contact Consumer Relations for assistance 1-800-228-0709.
▶ Parts Washers — Can Simple Green products be used in a parts washer, and if so, how?

Yes. Simple Green has products that are parts washer safe. We also offer products specifically designed for use in parts washers. Please contact Consumer Relations for recommendations: (800) 228-0709.

▶ Petroleum — How is Simple Green used in cleaning oil spills?
See "EPA National Contingency Plan"
▶ Petroleum — What are petroleum-based solvents? Are they hazardous?
Also known as "solvent evaporatives", petroleum-based solvents are significant contributors to smog, and create large volumes of hazardous waste. California's South Coast Air Quality Management District has ordered approximately 32,000 Southern California businesses to stop using these high-polluting solvents. In 1999, businesses in Los Angeles and other surrounding areas had to switch from solvent evaporatives to water-based detergents and other less-polluting alternatives for cleaning metal parts and machinery. California tends to set the trend for legislation in the rest of the United States in this area.
▶ pH — What is the definition of pH?
pH is the negative logarithm of the effectiveness the hydrogen ion concentration or hydrogen ion activity in gram equivalents per liter, used in expressing both acidity and alkalinity on a scale whose values run from 0 to 14, with 7 representing neutrality, numbers less than 7 increasing the acidity and numbers greater than 7 increasing the alkalinity. The pH scale is logarithmic. Each scale unit equals a power of 10. Consequently, a product that has a rating of 13 is 10,000 times more alkaline/caustic than one with a rating of 9. Simple Green All-Purpose Cleaner has a mild pH of 8.5 to 9.5.

pH is an important factor to consider when choosing or recommending cleaners or degreasers. Cleaners at both ends of the scale (14 & 0) can be effective cleaners, however they are more likely to be environmentally hazardous or present serious health hazards. The challenge in choosing a product is finding a balance of both safety and effectiveness. Simple Green All-Purpose Cleaner meets both of these qualifications.

▶ pH — How does pH affect disposal?
The pH scale is one of the factors used to evaluate whether a product can be discharged into a sanitary sewer.
▶ pH — What is the pH of Simple Green All-Purpose Cleaner?
Simple Green's pH is 8.5-9.5.
▶ Pressure Washers — Are Simple Green products pressure washer safe?

Yes. Simple Green products are pressure washer safe. We also offer products specifically designed for use in pressure washers.

▶ Priority Chemicals — Priority Chemicals
Simple Green continues to restrict and replace priority chemicals from its formulations with a goal of reaching 100% elimination. We review our formulations against priority chemical lists from the Walmart Reference Lists of Priority Chemicals, California’s Cleaning Product Right To Know Act of 2017 designated lists, and New York’s Household Cleansing Product Information Disclosure Program’s list of chemicals of concern. We currently do not intentionally add any chemicals from these lists to our products and are currently at approximately 98% priority chemical-free across our entire product range. Any questions about this should be sent to SimpleGreen.com/contact-us.
▶ Propositions — Proposition 65
Simple Green continues to restrict and replace priority chemicals from its formulations with a goal of reaching 100% elimination. We review our formulations against priority chemical lists from the Walmart Reference Lists of Priority Chemicals. We currently do not intentionally add any chemicals from these lists to our products and are currently at approximately 98% priority chemical-free across our entire product range. Any questions about this should be sent to https://simplegreen.com/contact-us/
▶ Propositions — Why does Simple Green have a Prop 65 warning?

Most Simple Green products do NOT contain any amount of Diethanolamine. Our popular All-Purpose Cleaners and most of our Industrial Cleaners and Degreasers to NOT contain Diethanolamine or other chemicals that would require a Prop 65 warning. While none of our products are intentionally formulated with Diethanolamine, a few of our specialty products do use Triethanolamine as a grease-cutting agent. Diethanolamine is a trace contaminant of Triethanolamine, meaning it can be found in very low (or "trace") levels in Triethanolamine. Because of this, we have chosen to include a Prop 65 warning on select products.

Some companies believe that if their product contains less than 0.1% of a Prop 65 chemical, they do not need to put a warning on their product. While our products fall well below that threshold, we do not agree with that policy. Instead we want to ensure as much transparency as possible for our customers.

Even prior to Prop 65 restrictions on Diethanolamine, we have intentionally sourced Triethanolamine containing as little Diethanolamine as possible and strictly limited the amount of Triethanolamine used in our formulas.

Certificates of Analysis for the Triethanolamine used in Simple Green products typically list a level of Diethanolamine around 0.04%. When this small amount is added to all other ingredients, the level of potential Diethanolamine in a product is typically less than 0.004%. Some of those products are concentrates which require users to dilute the product with water, bringing the levels of Diethanolamine down even further.

A Safe Harbor Level is the regulatory level of a chemical a person can be exposed to daily without significant risk of cancer or reproductive harm. The Safe Harbor Level for Diethanolamine has not yet been determined. Simple Green products which contain any amount of Diethanolamine, even so small that it is undetectable in lab tests, will continue to feature a Prop 65 warning on the product label, to ensure our consumers are aware of the ingredients in the products they choose to purchase.

▶ Propositions — What is Simple Green's policy on the use of chemicals requiring a Prop 65 warning?
Simple Green continues to restrict and replace priority chemicals from its formulations with a goal of reaching 100% elimination. We review our formulations against several priority chemical lists. We currently do not intentionally add chemicals from these lists to our products, but one (Diethanolamine) enters a few products as a contaminant to another intentionally used chemical (Triethanolamine) and we are currently at approximately 98% priority chemical-free across our entire product range. Any questions about this should be sent to

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▶ Resale — Can you re-package or pre-dilute Simple Green for resale?
No.
▶ Rinseability — Does Simple Green All-Purpose Cleaner rinse easily?
Simple Green All-Purpose Cleaner rinses residue-free and is an exceptional cleaner for paint prep and cleaning. If you are involved in the pharmaceutical, food processing or electronics industry and have concerns regarding even microscopic levels of residue, call 1-800-228-0709 to receive information on Crystal Simple Green Industrial Cleaner & Degreaser and its excellent rinse features. Crystal Simple Green does not contain the added fragrance or color found in Simple Green All-Purpose Cleaner.
▶ Rust — Is Simple Green All-Purpose Cleaner recommended for removing rust?
No. Rust is an alkaline soil created by the corrosion and oxidation of iron in metals. Simple Green is an alkaline aqueous-based cleaner and, as such, is not the best choice for removing rust. Alkaline soils typically require acidic solutions to effectively remove them.
▶ Rust — How can I still use Simple Green All-Purpose Cleaner to clean but also address rusting or metals corrosion?
Whether an aqueous-based product, chlorinated solvent, caustic or citrus type cleaner is used, the cleaned metal will begin to oxidize or rust. Many factors, including time, temperature, humidity and type of metal influence the rate of oxidation. Simple Green All-Purpose Cleaner is an aqueous-based cleaner. When bare metal is cleaned and degreased, all barrier coatings (i.e. oil, grease, lubricants, cutting oils, etc.) are removed. If a rust inhibitor or protectant spray is required, please call 800-228-0709 for more information. A word of caution: when adding foreign materials into Simple Green All-Purpose Cleaner, be aware that toxicity, biodegradability and sewer ability issues need to be addressed by the additive manufacturer.

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▶ Septic — Is Simple Green All-Purpose Cleaner safe for septic systems?
Yes. When used according to directions, Simple Green All-Purpose Cleaner is septic safe. It will not affect the good bacteria or enzymes that keep a septic system free flowing.
▶ Simple Green — What is Simple Green?
Simple Green is a brand of cleaning products. Our most well known product is our all-purpose cleaner which is used as a safer alternative for removing grease, oil and dirt.
▶ Solvents — What are solvent based cleaners, and are they hazardous?
Solvent based cleaners can be found in a number of household products. Mineral spirits, Xylene, 1-1-1 Trichloroethylene, Perchloroethylene and all other chlorinated and halogenated solvents present hazards to the user and the environment. These products soften oils and greases to allow for separation from the substrate. Along with environmental, health and safety concerns, there are complications with the disposal of these solvents.
▶ Surfactants — What are non-ionic surfactants?
Simple Green All-Purpose Cleaner consists of non-ionic surfactants. Non-ionic surfactants carry no discrete charge when dissolved in an aqueous media, unlike anionic or cationic surfactants. Hydrophilicity in non-ionic surfactants is provided by hydrogen bonding with water and molecules. Hydrogen bonding provides solubilization (loosening or dissolving action) in neutral and alkaline solutions.
▶ Surfactants — What is a surfactant?
A surfactant is a surface active agent. It reduces the surface tension of water and increases the solubility of soils.

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▶ Temperature — What temperature should Simple Green be stored?
Simple Green products should be stored at ambient room conditions of 70°F (21°C) and 14.7 psig (760 mmHg). Excessive and prolonged heat, cold and direct sunlight will result in a loss of efficacy.
▶ Temperature — Can Simple Green products be heated when cleaning?
Simple Green All-Purpose Cleaner can be heated up to 105°F and held at that temperature for extended time. Overheating will begin to break down certain components of Simple Green and make it more likely that the cleaning ability of the product will be diminished. Simple Green can be headed about 105°F, but it should be used right away and disposed of – such as in a steam cleaner.
▶ Temperature — Will Simple Green products freeze?
Yes. Simple Green products are aqueous based and will freeze at approximately 32°F (0°C). Our liquid formulations (except for disinfectants) can be thawed and reconstituted back to normal by gently agitating or rocking the container. Simple Green All-Purpose Cleaner can go through three freeze-thaw cycles before beginning to lose efficacy.
▶ TSCA — What is the Toxic Substances Control Act?
This Act controls the exposure to and use of chemical substances not subject to other laws. The act provides for a listing of all chemicals that are to be evaluated prior to manufacture or use in the U.S. All of the components of Simple Green are listed on the "TSCA Inventory" of chemical substances maintained by the U.S. Environmental Protection Agency ("EPA").

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▶ Urine — Steam Cleaning Carpets to Address Pet Urine Problems - A BIG NO-NO!
DO NOT clean your carpets with a steam carpet cleaner until you are sure you have addressed all urine spots with manual cleaning first. A steam-cleaning carpet machine can actually dissolve old urine salt crystals and redeposit them throughout your entire carpet. Your carpet may not smell too bad once it has dried, but in moist or humid conditions, the results of urine salt spread via steam cleaning can be awful. We recommend that if you are planning to have your carpets steam cleaned, you first pre-treat all spots well in advance with Simple Green Pet Stain & Odor Remover until you observe that the stains and odors are gone.
▶ Urine — Shampooing Carpets to Address Pet Urine Problems - Pre-treating is key
Although not as severe as urine salt dispersion from steam cleaning, wet shampooing of your carpets can also transfer urine salts over a broader area than where they were initially concentrated. Therefore, pre-treat all spots with Simple Green Pet Stain & Odor Remover before shampooing your carpet. Users of Simple Green Pet Stain & Odor Remover have had nice results with pre-treating spots, and then putting the product into the carpet cleaning machine to clean a broader area and even out "clean spots" left at the spot-treated areas. Simple Green also makes several other carpet products that are specifically designed to be used in the pre-spray and extraction carpet cleaning process. Check simplegreen.com for more information.

Whether steam cleaning or shampooing, always be sure to extract as much fluid as possible from your carpets. This can be time-consuming, but the results are worth it. Once extraction is done, you should not be able to place your hand on your carpet and come away with a wet hand. A slightly damp hand is fine, but no visible wetness. If wetness exists, perform extraction on the carpet again. A dry carpet is a happy (and non-smelly) carpet!
▶ USDA — Does Simple Green have USDA approval?
In 1997 the USDA stopped their non-food compound approval process and created a Hazard Assessment and Critical Control Points (HAACCP) program that reviews processes, not products. No Simple Green products currently have pre-1997 USDA approval. Crystal Simple Green Industrial Cleaner & Degreaser has undergone third party review by NSF International to confirm that it meets the new guidelines for non-food compounds. Crystal Simple Green has achieved NSF ratings A1, A2, A4, A8, B1 and C1. Foaming Crystal Simple Green has received an A1, A4, A8 and C1 rating. Simple Green Coil Cleaner (both foaming and liquid) have a C1 and P1 rating. Simple Green Safety Towels have A1, A4, A8 and C1 ratings. Simple Green Stainless Steel One-Step Cleaner and Polish has an A7 rating.

All NSF Non Food Compound listings may be viewed, and their current status confirmed at the NSF White Book.

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▶ Vegetation — Is Simple Green All-Purpose Cleaner safe for vegetation?
Diluted Simple Green All-Purpose Cleaner will not harm grass or flowers, but it's always a good idea to rinse foliage after it has had contact with the product. Simple Green All-Purpose Cleaner has been tested to be readily biodegradable. The product will break down by bacteria in soil and not persist in the environment.
▶ VOC — What is a VOC?
VOC stands for Volatile Organic Compound. These are chemicals that will evaporate at low temperatures and, by a photochemical reaction, will cause atmospheric oxygen to be converted into ozone which creates hazardous air pollution.

There are federal and state requirements that reduce VOC emissions.
▶ VOC — Do Simple Green products contain VOCs?
The VOC content for all Simple Green products is given on the Safety Data Sheet in the "Physical & Chemical Properties" section. All Simple Green products comply with state and federal VOC regulations.

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▶ Water — Are Simple Green products water-based cleaners?
Simple Green products are water-based cleaners. See "Alkaline Aqueous Solutions - General Description" for more details.