What Refrigerants Are Used in Home AC Units in 2026?

R-410A Phase-Down Schedule: What Contractors Must Know (2026–2036) The R-410A phase-down follows the EPA AIM Act’s banded HFC schedule: 60% of baseline for 2024–2028, 30% for 2029–2033, 20% for 2034–2035, and 15% from 2036 onward. New R-410A equipment production ended January 1, 2025, yet the refrigerant still services millions of existing systems. It is a…