Where It Comes From
Industrial HCFC production; legacy stocks in precision-cleaning fluids and some aerosols; residues in older or imported equipment. [1][2][4]
How You Are Exposed
Breathing vapors during cleaning/degreasing at work, accidental releases from stored products, or use in enclosed, poorly ventilated areas. [2][3]
Why It Matters
Harms stratospheric ozone and has greenhouse warming potential; high vapor levels can cause headache, dizziness, and irritation. [1][2][3]
Who Is at Risk
Workers in electronics/metal cleaning and maintenance, people working in small or poorly ventilated spaces, and waste handlers managing old stocks. [2][3]
How to Lower Your Exposure
Choose EPA SNAP-listed alternatives; ensure good local exhaust ventilation; follow PPE and safety data sheets; avoid buying/using products labeled HCFC‑225/AK‑225; dispose of legacy materials through approved hazardous-waste programs. [1][2]
References
- [1]U.S. EPA. Phaseout of HCFCs (Class II Ozone‑Depleting Substances) – Ozone Layer Protection.
- [2]U.S. EPA. Significant New Alternatives Policy (SNAP) Program – Solvent substitutes and listings for HCFC‑225.
- [3]CDC/NIOSH. Organic Solvents – Occupational Safety and Health Topic.
- [4]U.S. EPA. CompTox Chemicals Dashboard: 2,2-Dichloro-1,1,1,3,3-pentafluoropropane (CASRN 128903‑21‑9).