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Significant New Alternatives Policy (SNAP)

Substitutes in Residential Dehumidifiers

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.Substitutes are reviewed on the basis of environmental and health risks, including factors such as ozone depletion potential, global warming potential, toxicity, flammability, and exposure potential. Lists of acceptableHelpacceptableThis designation means that a substitute may be used, without restriction, to replace the relevant ODS within the end-use specified. For example, HCFC-22 is an acceptable substitute for R-502 in industrial process refrigeration. Note that all SNAP determinations apply to the use of a specific product as a substitute for a specific ODS in a specific end-use. and unacceptableHelpUnacceptableThis designation means that it is illegal to use a product as a substitute for an ODS in a specific end-use. For example, HCFC-141b is an unacceptable substitute for CFC-11 in building chillers. Note that all SNAP determinations apply to the use of a specific product as a substitute for a specific ODS in a specific end-use. substitutes are updated several times each year. The list of substitutes is shown below.

Note: SNAP-related information published in the Federal Register takes precedence over all information on this page.

               
Substitute Trade Name(s) Retrofit/New ODPHelpODPA number that refers to the amount of ozone depletion caused by a substance. The ODP is the ratio of the impact on ozone of a chemical compared to the impact of a similar mass of CFC-11. Thus, the ODP of CFC-11 is defined to be 1.0. Other CFCs and HCFCs have ODPs that range from 0.01 to 1.0. The halons have ODPs ranging up to 10. Carbon tetrachloride has an ODP of 1.2, and methyl chloroform's ODP is 0.11. HFCs have zero ODP because they do not contain chlorine. A table of all ozone-depleting substances (https://www3.epa.gov/ozone/science/ods/index.html) shows their ODPs, GWPs, and CAS numbers. GWPHelpGWPThe index used to translate the level of emissions of various gases into a common measure in order to compare the relative radiative forcing of different gases without directly calculating the changes in atmospheric concentrations. GWPs are calculated as the ratio of the radiative forcing that would result from the emissions of one kilogram of a greenhouse gas to that from the emission of one kilogram of carbon dioxide over a period of time (usually 100 years). Gases involved in complex atmospheric chemical processes have not been assigned GWPs. See lifetime. ASHRAEHelpASHRAEASHRAE is an international organization that establishes standards for the uniform testing and rating of heating, ventilation, air conditioning, and refrigeration equipment. It also conducts related research, disseminates publications, and provides continuing education to its members.
Designation
(Safety
Classification)
SNAP Listing Date Listing Status
RB-276 Free Zone, HCFC Blend Delta R/N 0.013 1,592 A1 September 5, 1996 Acceptable
Freeze 12 Freeze 12 R/N 0.013 1,606 A1 September 5, 1996 Acceptable
R-416A FRIGC FR-12, HCFC Blend Beta R/N 0.009 1,081 A1 February 8, 1996;
February 24, 1998
Acceptable
GHG-HP HCFC Blend Lambda R/N 0.056 1,893 A1 February 8, 1996 Acceptable
R-414A GHG-X4, Autofrost, Chill-it, HCFC Blend Xi R/N 0.045 1,478 A1 September 5, 1996 Acceptable
GHG-X5 GHG-X5 R/N 0.032 2,377 A1 June 3, 1997 Acceptable
HCFC-22   R/N 0.055 1,810 A1 March 18, 1994 Acceptable
HCFC-22/HCFC-142b   R/N 0.055-0.065 1,810-2,310 A1 June 3, 1997 Acceptable
HFC-134a   R/N 0 1,430 A1 March 18, 1994;
June 16, 2010
Acceptable
R-414B  Hot Shot, Kar Kool, HCFC Blend Omicron R/N 0.098 3,337 A1 September 5, 1996 Acceptable
R-417C Hot Shot 2 R 0 1,820 A1 October 4, 2011 Acceptable
Ikon B   R/N 0 N/A A1 December 6, 1999 Acceptable
R-125/R-134a/R-600a (28.1/70.0/1.9) NU-22 old composition R/N 0 1,990 A1 June 16, 2010 Acceptable
R-125/R-290/R-134a/R-600a (55.0/1.0/42.5/1.5) ICOR AT-22 R/N 0 2,530 A1 March 29, 2006 Acceptable
R-401A SUVA MP-39 N 0.037 1,182 A1 January 13, 1995 Acceptable
R-401B SUVA MP-66 N 0.040 1,288 A1 January 13, 1995 Acceptable
R-404A SUVA HP-62 R/N 0 3,920 A1 December 20, 2002 Acceptable
R-406A GHG-12, GHG-X3, McCool, Autofrost X3 R 0.057 1,900 A2 August 26, 1994 Acceptable
R-407C Suva 407C, Klea 407C R/N 0 1,770 A1 February 8, 1996;
December 20, 2002;
August 21, 2003
Acceptable
R-409A  HCFC Blend Gamma R 0.047 1,558 A1 August 26, 1994 Acceptable
R-410A AZ-20, Suva 9100, Puron N 0 2,090 A1 February 8, 1996;
December 20, 2002
Acceptable
R-410B   N 0 2,230 A1 February 8, 1996 Acceptable
R-420A Choice R-420A R/N 0.008 1,536 A1 October 1, 2004 Acceptable
R-421A Choice R-421A R/N 0 2,630 A1 September 28, 2006 Acceptable
R-422B ICOR XAC1, NU-22B R/N 0 2,530 A1 March 29, 2006 Acceptable
R-422C ICOR XLT1 R/N 0 3,390 A1 March 29, 2006 Acceptable
R-422D ISCEON MO29 R/N 0 2,730 A1 September 28, 2006 Acceptable
R-424A RS-44 R/N 0 2,440 A1 September 28, 2006 Acceptable
R-426A RS-24 R/N 0 1,510 A1 September 28, 2006;
June 16, 2010
Acceptable
R-434A RS-45 R/N 0 3,250 A1 October 4, 2007 Acceptable
R-437A KDD6, ISCEON MO49 Plus R/N 0 1,810 A1 January 2, 2009;
June 16, 2010
Acceptable
R-438A KDD5, ISCEON MO99 R/N 0 2,270 A1 October 4, 2007;
June 16, 2010
Acceptable
R-507, R-507A AZ-50 R/N 0 3,990 A1 December 20, 2002 Acceptable
R-513A Opteon® XP 10 R/N 0 630 A1 July 21, 2017 Acceptable
RS-24 (2002 formulation)   R/N 0 1,510 A1 December 20, 2002;
June 16, 2010
Acceptable
RS-44 (2003 formulation)   R/N 0 2,420 A1 June 16, 2010 Acceptable

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