# R-410B — HVAC refrigerant replacements: retrofit compatibility, safety class, GWP and lubricant

For R-410B, retrofit / new is N; ashrae safety class is A1; gwp is 2,230; listing status / notes is Acceptable, verified against its source on 2026-08-11.

- **Refrigerant:** R-410B _(verified: appears in the quote below)_
- **Retrofit / new:** N _(verified: appears in the quote below)_
- **ASHRAE safety class:** A1 _(verified: appears in the quote below)_
- **GWP:** 2,230 _(verified: appears in the quote below)_
- **Listing status / notes:** Acceptable _(verified: appears in the quote below)_

## What the source says

> R-410B | | N | 0 | 2,230 | A1 | <https://www.govinfo.gov/content/pkg/FR-1996-02-08/pdf/96-2723.pdf> February 8, 1996 (pdf) (152 KB) | Acceptable |

## Source

- https://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps

Last verified: 2026-08-11. Review by: 2027-08-11.
Part of [HVAC refrigerant replacements: retrofit compatibility, safety class, GWP and lubricant](https://referencesource.org/hvac-component-refrigerant-compatibility/).