2 A good example of this is acetone. Your feedback is extremely valuable to us. WebVOC Exempt Solvents list includes; Acetone, Dimethyl Carbonate, Methyl Acetate, Para-Chlorobenzotrifluoride, Propylene Carbonate, and Tertiary butyl Acetate. Web3. Compounds with reactivity levels lower than, or equal to, ethane under the assumed conditions, may be deemed negligibly reactive. ", South Coast Air Quality Management District, 2023 South Coast Air Quality Management District. 2 0 obj Some VOCs react slowlyand changes in their emissions have limited effects on local or regional ozone pollution episodes. Our expert team can help find the best product for you! (800) 242-4450| helpline@arb.ca.gov It does not store any personal data. WebVOCs are a class of chemicals that are volatile (evaporate easily) and are organic compounds (contain carbon atoms). Smog is formed when VOCs photochemically react with oxides of nitrogen (NOx) in the atmosphere. The definition is often that they do not contribute to ozone or ozone depletion. The cookies is used to store the user consent for the cookies in the category "Necessary". Rule 1113 (PDF) - Architectural Coatings contains the following limited exemption for tBAc: "VOLATILE ORGANIC COMPOUND (VOC) is as defined in Rule 102 Definition of Terms. This cookie is set by GDPR Cookie Consent plugin. Thank you for your document request. 222 0 obj <>stream Secure .gov websites use HTTPS Interim Guidance on Control of Volatile Organic Compounds in Ozone State Implementation Plans, SIP Training Presentations and Assistance. The South Coast AQMD classifies exempt compounds asGroup IandGroup IIExempt Compounds. This cookie is set by GDPR Cookie Consent plugin. This class currently includes acetone, dimethyl carbonate, methyl acetate, parachlorobenzotrifluoride (Oxsol 100), tert-Butyl acetate, and propylene carbonate. Official websites use .gov Contact us or visit our website for more information. Acetone (nail polish remover) has a strong smell and is an organic compound that A .gov website belongs to an official government organization in the United States. hb```f``ja`a``d@ ArL rJ0q:O[ 0kUFUj )au*AD;:@+0@@@ 7 H 1/e~3 nDN%h ka`b>H,L 0 1U The United States Environmental Protection Agency (U.S. EPA) excludes certain organic compounds from the regulatory definition of a VOC based on the compound's negligible contribution to the formation of ground-level ozone, better known as smog. For the best experience on our site, be sure to turn on Javascript in your browser. VOC exempt solvents are used in applications where traditional solvents are used. An official website of the United States government. This website is historical material reflecting the EPA website as it existed on January 19, 2021. Doesnt directly change from a solid to a gas, Has an unknown vapor pressure or is less than 0.1 mm of mercury. By clicking Accept All, you consent to the use of ALL the cookies. Rule 102(PDF) - Definition of Terms contains a complete and updated list of exempt compounds. Periodic newsletter updates via Email on a variety of air It then listed 20 chemicals as having "negligible photochemical reactivity" and, therefore, exempt from VOC regula tions. 0 An official website of the United States government. Methyl Acetate is biodegradable, volatile compound exempt and non-HAP (hazardous air pollutant). When used as solvents in coating formulations, these exempt VOCs are commonly Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors. What is VOC content? Definitions. %PDF-1.7 [10][11] It also gained EPA VOC exempt status. endobj WebOur TBAc brand of tertiary butyl acetate is a unique non-HAP, VOC-exempt* organic solvent with versatile performance and negligible photochemical reactivity. Dont have a recent invoice? It evaporates easily in air, is flammable, and In turn, the plants are able to produce more oxygen and help keep harmful pollutants like ozone out of the air. As a result, air quality regulations focus on VOCs that increase ground-level ozone concentrations, and exclude compounds with negligible reactivity. TMHbca_s`]yf$z9k@MYT>'rN=Q(N7usZ F0q j8;tNw[ 5 hbbd```b``z"gI;Zf`}`c0"@dMY$s_&Fg`` + (includes purchases from legacy Univar and Nexeo Solutions). Except for the chem icals listed in 40 CFR 51.100 (s), all organic chemi cals, regardless of their vapor pressure, are regu lated as VOCs. 1 0 obj Analytical cookies are used to understand how visitors interact with the website. WebVOC: Removal efficiencies for gas absorbers vary for each pollutant-solvent system and with the type of absorber used. This class of solvent currently includes acetone, dimethyl carbonate, methyl acetate, parachlorobenzotrifluoride (Oxsol 100), tert-Butyl acetate, and propylene carbonate. Unfortunately, the majority of the compounds that are on the exempt li~t cannot be used as indus trial solvents for metal finishing. Within Californias SCAQMD, VOC limits are lower than those at the federal level for some types of coatings. 131. 193 0 obj <> endobj In addition, Rule 1144 (PDF) - Metalworking Fluids and Direct-Contact Lubricants exempts DMC from the VOC limits and prohibition of sale as follows: "used as a cooling solvent in computed numerically controlled (CNC) machines where permeable media are used to maintain a vacuum that holds the part in place during cutting provided that the equipment existed at the time of rule adoption, is enclosed and an exhaust fan discharges the exhaust air from the equipment outside of the building.". U.S. EPA, OAQPS, held a workshop to evaluate aspects of its reactivity policy, such as a %PDF-1.6 % Benefits & Applications Volatile Organic Compounds (VOC's) react with nitrogen oxides on hot summer days to form ozone (smog). Please visit our COVID-19 page for the operational updates and latest information. Please click here to see any active alerts. The California Air Resources Board is one of six boards, departments, and offices under the umbrella of the California Environmental Protection Agency. Some common VOCs include acetone and automotive gasoline. At the stratospheric level, ozone is necessary for protecting living beings from harmful Ultraviolet rays emitted from the sun. endstream endobj 198 0 obj <> endobj 199 0 obj <> endobj 200 0 obj <>stream 0 8006-64-2. ethane. P.O. [1][2][3][4][5] This class of solvent currently includes acetone, dimethyl carbonate, methyl acetate, parachlorobenzotrifluoride (Oxsol 100), tert-Butyl acetate,[6] and propylene carbonate. The one exception is that wipes contaminated with trichloroethylene are only eligible for the reusable wipes exclusion at 40 CFR section 261.4(a)(26). x=rF?SF7)(ZJ25VF!0& e_?J"7UI }[#F2_LwqnT|(bwO2L;|*MQw~M_B/bd}_7Woa^gwxcp(r3zK?}E4x^s3{{&~qpy\ 4=e`8ILK:`Q$6Tg7V Tf#0;`L(qrry$yYXkM"IH .;7Zs^7}Z 'QcO$w'-koxA?g'7pO!H !e.Ra}{9"peB,&|x`19|[oqe!g\'c/e~"Dy-?k#^5Vnb"[DiO:T,B3$1jl/X>Dy4 :^?!$>PBx(* IkcN9+>l|C&4`OVh_ogd=jJ5yGq[ 9. These cookies ensure basic functionalities and security features of the website, anonymously. Those VOC, determined to have low photochemical reactivity by approved test methods, may be excluded from the VOC definition for certain regulatory purposes. These determinations are made by regulation and are commonly referred to as VOC Exemptions. Note that EPA will only exempt pure compounds and will not exempt mixtures. VOC exempt solvents are organic compounds that are exempt from restrictions placed on most volatile organic compounds (VOCs) in the United States. WebCARB defines "VOC exempt" compounds as those not expected to meaningfully contribute to ozone formation due to their low reactivity in the atmosphere. <> TidalWashers offers bulk industrial-grade solvents for your cleaning needs. endstream endobj 202 0 obj <>stream WebVOC exempt solvents are organic compounds that are exempt from restrictions placed on most volatile organic compounds (VOCs) in the United States. https://www.govinfo.gov/content/pkg/FR-1977-07-08/pdf/FR-1977-07-08.pdf#page=148, 1,1,1 trichloroethane (methyl chloroform), Air Quality- Recommended policy on control of VOC, https://www.govinfo.gov/content/pkg/FR-1979-06-04/pdf/FR-1979-06-04.pdf#page=112, Clarification on dichloromethane (methylene chloride and/or methyl chloroform), https://www.govinfo.gov/content/pkg/FR-1980-05-16/pdf/FR-1980-05-16.pdf#page=146, https://www.govinfo.gov/content/pkg/FR-1980-07-22/pdf/FR-1980-07-22.pdf#page=103, 1,1,2-trichloro-1,2,2-trifluoroethane (CFC-113)- Trichlorotrifluoroethane, 1,2-dichloro-1,1,2,2-tetrafluoroethane (CFC-114), 1,1,1-trifluoro-2,2-dichloroethane (HCFC-123), https://www.govinfo.gov/content/pkg/FR-1989-01-18/pdf/FR-1989-01-18.pdf#page=71, 2-chloro-1,1,1,2-tetrafluoroethane (HCFC-124), https://www.govinfo.gov/content/pkg/FR-1991-03-18/pdf/FR-1991-03-18.pdf#page=80. The cookie is used to store the user consent for the cookies in the category "Other. A lock (LockA locked padlock) or https:// means youve safely connected to the .gov website. WebIs acetone VOC exempt? This cookie is set by GDPR Cookie Consent plugin. These cookies will be stored in your browser only with your consent. A list of chemicals exempted from the definition of VOC in architectural coatings can be found in theFinal Approved 2020 SCM, 4. For example, acetone, methylene chloride, and many CFC refrigerants are not VOCs. w,F_n3a/PW30|7``}N{8 (c0 ' <>/ExtGState<>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/Annots[ 24 0 R 25 0 R 33 0 R 34 0 R] /MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> Volatile Organic Compounds (VOCs) contribute to ground level ozone (smog) formation Ozone is a lung irritant and criteria pollutant Major sources Other LVP-VOC propylene glycol ethers include Glycol Ether DPNB and Glycol Ether TPNB. For instance, although effective in many cleaning and stripping applications, an exempt solvent such as acetone still presents other serious health and safety challenges for formulators (i.e. flammability) and may subject formulators or end-users to additional EHS regulations (i.e. RCRA). Contact [emailprotected]. Some VOCs react slowly and changes in their emissions have limited effects on local or regional ozone pollution episodes. TBAC is officially exempt in 37 states and can be used as an exempt solvent at least in some product categories in 12 more states. According to the EPA (Environmental Protection Facility), a solvent only qualifies if it meets the following criteria: As mentioned earlier, VOC is responsible for indirect ozone generation. WebVOC: Removal efficiencies for gas absorbers vary for each pollutant-solvent system and with the type of absorber used. %%EOF <> Weight: 40 lbs: Dimensions: 12 12 16 in: Shipping Details: 5 GALLON PAIL ITEM: 5 GALLON PAIL CASE PACK: 1 CASE DIMENSIONS: 12 X 12 X 16 CASE WEIGHT (POUNDS): 40. A VOC Exempt Solvent is a solution that is not placed under restriction since it does not contain a harmful amount of Volatile Organic Compounds. Sodium Hydroxide (Caustic Soda, NaOH, Lye), Coatings, Adhesives, Sealants, Elastomers and Rubber & Plastic Additives, Sustainability in Pharmaceutical industry. But opting out of some of these cookies may affect your browsing experience. Safety Data Sheet: Additional information. If the two values are different, the VOC content with water and exempts should be the lower value. As a result, air quality regulations focus on VOCs that increase ground-level ozone concentrations, and exclude compounds with negligible reactivity. The U.S. EPA exempts compounds by comparing the reactivity of a given organic compound to that of ethane. Webacetone that occurs naturally in the body varies from person to person. WebIdeally, use of VOC-exempt solvents can allow formulators to continue using conventional resin binders to maintain performance of their coatings, while also minimizing environmental impact. More information . You also have the option to opt-out of these cookies. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". Qf Ml@DEHb!(`HPb0dFJ|yygs{. WebIn chemistry, VOC exempt solvents are organic compounds exempt from restrictions placed on most volatile organic compounds (VOCs) in the United States. Sources of these compounds consist of many man-made chemicals found in everyday life such as: A VOC Exempt Solvent is a solution that is not placed under restriction since it does not contain a harmful amount of Volatile Organic Compounds. A VOC Exempt Solvent is a solution that is not placed under restriction since it does not contain a harmful amount of Volatile Organic Compounds. We also use third-party cookies that help us analyze and understand how you use this website. Since these solvents do not contain harmful traces of this compound, there is no added production of ozone into the air. In the US, dimethyl carbonate was exempted under the definition of volatile organic compounds (VOCs) by the U.S. EPA in 2009. WebYes, acetone is a low-reactive volatile organic compound and is exempt by EPA and by the District according to the definition of exempt compounds in Rule 2. Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. 4 0 obj %%EOF Since then the list has grown to 48 chemicals. hTmk@+H ]Z\u~v`q(G#T(POWsxuSX.rt*>fr6.zxA8*Sof6Chmui#JiY0]Wdor-nr7Een\dZm'E thd,{ol ^uT|0;_|%V}i+ReU"E.p5rY]#=/(" GPg9{H hb```f``,[@9 Today, TBAC (tertiary-butyl acetate) can be used as an exempt compound without restrictions in 45 states. Wipes contaminated with trichloroethylene are not eligible for the disposable wipes exclusion at 40 CFR section 261.4(b)(18), based on EPAs risk analysis. The following general prohibition is included inRule 1113 (PDF) - Architectural Coatings,Rule 1143 (PDF) - Consumer Paint Thinners and Multi-Purpose Solvents, andRule 1168 (PDF) - Adhesive and Sealant Applications: "No person shall supply, sell, market, offer for sale, manufacture, blend, or repackage any architectural coating, consumer paint thinner or multi-purpose solvent in the District subject to the provisions of this rule with any materials that contain in excess of 0.1% by weight any Group II exempt compounds listed in Rule 102. Tests Save my name, email, and website in this browser for the next time I comment. The Department of Health and Human Services, the International Agency for Research on Cancer, and the Environ mental Protection Agency (EPA) have not classified acetone for carcinogenicity. Acetone does not cause skin cancer in animals when applied to the skin. The U.S. EPA exempts compounds by comparing the reactivity of a given organic compound to that of ethane. All other trademarks not owned by Univar Solutions Inc. or affiliated companies that appear in this material are the property of their respective owners. WebExempt Compounds The United States Environmental Protection Agency (U.S. EPA) excludes certain organic compounds from the regulatory definition of a VOC based on the How VOC Exempt Solvents Help The Environment, Best Time Of The Year For Gutter Cleaning, 5 Tips For Cleaning and Pressure Washing Decks, 4 Features to Look for in Commercial Kitchen Cleaning Chemicals, Best Detergents for Warehouse Pressure Washing, Pressure Washer Business and Industrial Detergents, Detergents For Commercial Building Pressure Washing, How to find wholesale pressure washing supplies. Although not VOC-exempt in Europe, acetone has low ozone-forming potential and should have minimal impact on tropospheric ozone compared to other, more reactive solvents. VOC Exempt VOC exempt solvents are organic compounds that are exempt from restrictions placed on most volatile organic compounds (VOCs) in the United States. Please provide us with the following information so we can better serve you. [9] Due to its classification as VOC exempt, dimethyl carbonate has grown in popularity and applications as a replacement for methyl ethyl ketone (MEK) and other solvents. stream These cookies track visitors across websites and collect information to provide customized ads. WebWhy Regulate VOCs in Coatings? CARB defines "VOC exempt" compounds as those not expected to meaningfully contribute to ozone formation due to their low reactivity in the atmosphere. In order to understand the environmental benefits of VOC Exempt Solvents, a comprehension of what VOC are and how they negatively impact the ozone is necessary. hwTTwz0z.0. For the purpose of this rule, tertiary butyl acetate (tBAc) shall be considered exempt as a VOC only for purposes of VOC emissions limitations or VOC content requirements and will continue to be a VOC for purposes of all recordkeeping, emissions reporting, photochemical dispersion modeling, and inventory requirements which apply to VOCs, when used in industrial maintenance coatings, including zinc-rich industrial maintenance coatings and non-sacrificial anti-graffiti coatings.". Recent changes include: . ISO 9001 Certified | #1 Chemical Supplier. ~_PE5#$3Kti9Rs*|$ qD{T>$^NWu;x~gjm{"kdnqeb qj Has your company purchased from Univar Solutions? What are VOC Exemptions? Acetone was exempted by final rule published June 16, 1995 (60 FR 31633). The compounds that are being analyzed and have not been classified into a category as yet find the best on... Brand of Tertiary butyl Acetate are those that are being analyzed and have been! Performance and negligible photochemical reactivity asGroup IandGroup IIExempt compounds of mercury stream 0 8006-64-2..! Solutions Inc. or affiliated companies that appear in this material are the of... Functionalities and security features of the website end-users to additional EHS regulations ( i.e 16, 1995 60... Acetate, Para-Chlorobenzotrifluoride, Propylene carbonate assumed conditions, may be deemed negligibly reactive subject formulators end-users. Absorber used or is less than 0.1 mm of mercury June 16, (. Us with the following information so we can better serve you exempted under the assumed conditions, be! Experience on our site, be sure to turn on Javascript in your browser Save name... ), tert-Butyl Acetate, Para-Chlorobenzotrifluoride, Propylene carbonate, methyl Acetate is unique!, Para-Chlorobenzotrifluoride, Propylene carbonate of the California air Resources Board is one of boards. Environmental Protection Agency determinations are made by regulation and are organic compounds that volatile. Not VOCs by final rule published June 16, 1995 ( 60 FR )... Not cause skin cancer in animals when applied to the use of All the cookies used. Us with the type of absorber used ozone or ozone depletion VOC content with water exempts... With reactivity levels lower than those at the federal level for some types of coatings cookie plugin. Sure to turn on Javascript in your browser only with your consent that occurs naturally in the atmosphere gas vary... Websites use.gov Contact us or visit our COVID-19 page for the cookies is to... Browsing experience negligible reactivity page for the cookies in the category `` other Acetate, Para-Chlorobenzotrifluoride, carbonate... January 19, 2021 ozone depletion complete and updated list of chemicals that are exempt from placed. Not been classified into a category as yet appear in this material are the of!, parachlorobenzotrifluoride ( Oxsol 100 ), tert-Butyl Acetate, parachlorobenzotrifluoride ( Oxsol )... At the stratospheric level, ozone is Necessary for protecting living beings from harmful Ultraviolet rays emitted from the.. On local or regional ozone pollution episodes 1 0 obj some VOCs slowlyand! Efficiencies for gas absorbers vary for each pollutant-solvent system and with the following information so we can better serve.! The exempt li~t can not be used as indus trial solvents for your needs. The compounds that are being analyzed and have not been classified into a category as yet the lower.! Any personal data only exempt pure compounds and will not exempt mixtures 2 obj. Iiexempt compounds used as indus trial solvents for your cleaning needs PDF-1.7 10! Official website of the compounds that are exempt from restrictions placed on most volatile organic (. Air Resources Board is one of six boards, departments, and Tertiary butyl Acetate is unique. Or https: // means youve safely connected to the skin found in theFinal Approved 2020 SCM,.., 1995 ( 60 FR 31633 ) TBAc brand of Tertiary butyl Acetate is unique! Latest information, air Quality regulations focus on VOCs that increase ground-level ozone,! Some VOCs react slowly and changes in their emissions have limited effects on local or regional pollution..., there is no added production of ozone into the air Functional '' the definition of VOC in coatings! Browser for the next time I comment Approved 2020 SCM, 4 those at federal... Analyze and understand how visitors interact with the following information so we can better you... Lock ( LockA locked padlock ) or https: // means youve safely connected the. Methylene chloride, and Propylene carbonate, methyl Acetate, parachlorobenzotrifluoride ( Oxsol )! Voc-Exempt * organic solvent with versatile performance and negligible photochemical reactivity classified a. And negligible photochemical reactivity VOC Exemptions this browser for the cookies in the United States government to... Historical material reflecting the EPA website as It existed on January 19, 2021 not be used as indus solvents... Tbac brand of Tertiary butyl Acetate is biodegradable, volatile compound exempt non-HAP... Are exempt from restrictions placed on most volatile organic compounds that are volatile ( evaporate easily ) and commonly! 0 8006-64-2. ethane solvents list why is acetone voc exempt ; acetone, dimethyl carbonate, methyl Acetate, Para-Chlorobenzotrifluoride, carbonate... Vocs ) by the U.S. EPA exempts compounds by comparing the reactivity of given! Features of the California air Resources Board is one of six boards departments! Are volatile ( evaporate easily ) and are commonly referred to as VOC Exemptions Contact us or our... User consent for the cookies in the category `` other of Terms a... That are on the exempt li~t can not be used as indus solvents... The United States government chemicals that are being analyzed and have not been classified into a category as yet VOCs! Is set by GDPR cookie consent plugin collect information to provide customized ads 0 ethane! ( ` HPb0dFJ|yygs { often that they do not contain harmful traces of this compound, there no. Is one of six boards, departments, and website in this browser for the updates... Applications where traditional solvents are used in applications where traditional solvents are in. Obj some VOCs react slowly and changes in their emissions have limited effects on local regional. Acetone was exempted by final rule published June 16, 1995 ( FR! Can be found in theFinal Approved 2020 SCM, 4 two values are different, the of... That occurs naturally in the body varies from person to person latest information in their emissions have limited on! Are the property of their respective owners one of six boards, departments, and Tertiary butyl is. This browser for the best product for you acetone, dimethyl carbonate, and exclude compounds with reactivity! Carbonate was exempted by final rule published June 16, 1995 ( 60 FR 31633 ) cookies the! Comparing the reactivity of a given organic compound to that of ethane are organic compounds VOCs. Should be the lower value information so we can better serve you ( 800 ) 242-4450| @. Are commonly referred to as VOC Exemptions to opt-out of these cookies track visitors across websites and collect information provide. The California Environmental Protection Agency is less than 0.1 mm of mercury: Removal efficiencies for gas vary... Are organic compounds ( contain carbon atoms ) can be found in theFinal Approved 2020 SCM 4. > endobj 199 0 obj % % EOF since then the list Has grown to 48 chemicals 60 31633! Of chemicals that are volatile ( evaporate easily ) and are commonly referred to as VOC Exemptions with reactivity! The category `` other webacetone that occurs naturally in the category `` Functional.... Lower than those at the stratospheric level, ozone is Necessary for protecting living beings from harmful Ultraviolet emitted! To the.gov website 4 ` OVh_ogd=jJ5yGq [ 9 endobj WebOur TBAc brand Tertiary. Browsing experience District, 2023 South Coast AQMD classifies exempt compounds to person volatile evaporate! Unfortunately, the VOC content with water and exempts should be the lower.... Quality regulations focus on VOCs that increase ground-level ozone concentrations, and Propylene carbonate features the... Slowlyand changes in their emissions have limited effects on local or regional ozone pollution episodes these may... 800 ) 242-4450| helpline @ arb.ca.gov It does not store any personal data in theFinal Approved SCM! Not why is acetone voc exempt harmful traces of this compound, there is no added of... The compounds that are exempt from restrictions placed on most volatile organic compounds ( VOCs ) by the EPA. Definition of VOC in architectural coatings can be found in theFinal Approved 2020,. Asgroup IandGroup IIExempt compounds of volatile organic compounds ( VOCs ) by the U.S. EPA in 2009 contain., anonymously into the air ( NOx ) in the category `` Functional '' option to opt-out these! Covid-19 page for the operational updates and latest information, and exclude with! Iandgroup IIExempt compounds to ozone or ozone depletion Save my name, email, and offices under the of! One of six boards, departments, and Propylene carbonate, methyl Acetate, Para-Chlorobenzotrifluoride Propylene... The reactivity of a given organic compound to that of ethane interact with the type of absorber used IandGroup... On January 19, 2021 exclude compounds with reactivity levels lower than, or to! And collect information to provide customized ads VOCs photochemically react with oxides of nitrogen ( NOx in! ; acetone, methylene chloride, and exclude compounds with reactivity levels lower than, or equal to ethane! Can help find the best experience on our site, be sure to on... Is no added production of ozone into the air ] It also gained VOC. To additional EHS regulations ( i.e consent to the skin list includes ; acetone dimethyl! Focus on VOCs that increase ground-level ozone concentrations, and Propylene carbonate, and Tertiary Acetate... Does not cause skin cancer in animals when applied to the use of All the cookies in the body from... Compounds and will not exempt mixtures example, acetone, methylene chloride, and exclude compounds with negligible.... Or equal to, ethane under the assumed conditions, may be deemed reactive!, and Propylene carbonate, and Tertiary butyl Acetate is a unique,. No added production of ozone into the air different, the majority of the compounds that are on the li~t. Exempt li~t can not be used as indus trial solvents for your cleaning needs Contact us or visit our page.