Applications & Phase-Out Status Widely used in residential and commercial AC units, heat pumps, and refrigeration systems due to its effective cooling capabilities Production and use are being phased out globally under the Montreal Protocol and regional regulations: 2010: Ban on new equipment using R‑22 in many regions (e.g., EU, U.S.). 2020: Full ban on production and import in the U.S.—only reclaimed stocks may be used for servicing . 2030: Global elimination of HCFC production, including R‑22 . Environmental & Regulatory Impact Contains chlorine, contributing to ozone depletion and classified as environmentally harmful High GWP adds to climate change concerns, prompting transition to greener alternatives like R‑410A, R‑454B, and HFO-based blends Safety & Handling Toxicity: Low acute toxicity, but high concentrations can displace oxygen, causing asphyxiation and possible cardiac arrhythmia. Exposure Effects: Rapid release may cause frostbite; inhalation may cause respiratory distress Transport Classification: UN1018, Class 2.2 (non‑flammable gas) Environmental Regulations: Must be recovered and not vented during maintenance/disposal in compliance with U.S. Clean Air Act §608 and similar laws
