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Acceptable Substitutes in Residential Dehumidifiers
Substitutes are reviewed on the basis of ozone depletion potential, global warming potential, toxicity, flammability, and exposure potential. Lists of acceptable and unacceptable substitutes are updated several times each year. A chronological list of SNAP updates is also available.
Unacceptable substitutesNote: SNAP-related information published in the Federal Register takes precedence over all information on this page.
Substitutes for CFCs (class I ODS) in Residential Dehumidifiers
| Substitutes (Name Used in the Federal Register) | Trade Name | Refrigerant Being Replaced | Retrofit/New |
|---|---|---|---|
| HCFC-22 | 12, 500 | R, N | |
| HFC-134a | 12, 500 | R, N | |
| R-401A, R-401B | MP-39, MP-66 | 12, 500 | R, N |
| R-406A | GHG | 12, 500 | R |
| R-409A (HCFC Blend Gamma) | 12, 500 | R | |
| Free Zone (HCFC Blend Delta) | Free Zone / RB-276 | 12, 500 | R, N |
| Freeze 12 | Freeze 12 | 12, 500 | R, N |
| FRIGC FR-12 (HCFC Blend Beta) | FRIGC FR-12 | 12, 500 | R, N |
| GHG-X4 | GHG-X4, Autofrost, Chill-it | 12, 500 | R, N |
| GHG-X5 | GHG-X5 | 12, 500 | R, N |
| GHG-HP (HCFC Blend Lambda) | GHG-HP | 12, 500 | R, N |
| Hot Shot | Hot Shot, Kar Kool | 12, 500 | R, N |
| HCFC-22/HCFC-142b | 12 | R, N | |
| Ikon B | 12 | R, N | |
| RS-24 (2002 formulation) | 12 | R, N | |
| R-407C | Suva 407C, Klea 407C | 502 | R, N |
| R-420A | Choice R-420A | 12, 500 | R, N |
| R-426A | RS-24 | 12 | R, N |
| KDD6 | KDD6 | 12 | R, N |
| Hot Shot 2 | Hot Shot 2 | 12, 500 | R |
Key: R = Retrofit Uses, N = New
Uses
Substitutes for HCFCs (class II ODS) in Residential Dehumidifiers
| Substitutes (Name Used in the Federal Register) | Trade Name | Refrigerant Being Replaced | Retrofit/New |
|---|---|---|---|
| R-404A | HP62 | 22 and blends containing HCFCs | R, N |
| R-507, R-507A | AZ-50 | 22 and blends containing HCFCs | R, N |
| R-407C | Suva 9000, KLEA 66 | 22 and blends containing HCFCs | R, N |
| R-410A | AZ-20 | 22 and blends containing HCFCs | N |
| R-410B | 22, blends containing 22 and/or 142b | N | |
| RS-44 (2003 formulation) | RS-44 (2003 formulation) | 22, blends containing 22 and/or 142b | R, N |
| R-421A | Choice R421A | 22, blends containing 22 and/or 142b | R, N |
| R-422D | ISCEON MO29 | 22, blends containing 22 and/or 142b | R, N |
| R-424A | RS-44 | 22, blends containing 22 and/or 142b | R, N |
| KDD5, R-438A | ISCEON MO99 | 22, blends containing 22 and/or 142b | R, N |
| R-434A | RS-45 | 22, blends containing 22 and/or 142b | R, N |
| R-125/290/134a/600a (55.0/1.0/42.5/1.5) | ICOR AT-22 | 22, blends containing 22 and/or 142b | R, N |
| R-422B | XAC1, NU-22B | 22, blends containing 22 and/or 142b | R, N |
| R-422C | XLT1 | 22, 402A, 402B, 408A, and blends containing 22 and/or 142b | R, N |
| HFC-134a | 22, blends containing 22 and/or 142b | R, N | |
| R-426A | RS-24 | 22, blends containing 22 and/or 142b | R, N |
| RS-24 (2002 formulation) | RS-24 (2002 formulation) | 22, blends containing 22 and/or 142b | R, N |
| R-437A | ISCEON MO49 Plus | 22, blends containing 22 and/or 142b | R, N |
| R-125/134a/600a (28.1/70.0/1.9) | NU-22 old composition | 22, blends containing 22 and/or 142b | R, N |
| Hot Shot 2 | Hot Shot 2 | 22, blends containing 22 and/or 142b | R |
Key: R = Retrofit Uses, N = New
Uses