Dichlorotrifluoroethane

Manufacturing or servicing of refrigeration/air-conditioning chillers, foam blowing, and precision cleaning solvents; some fire-suppression blends also contain it [1][2].

Breathing vapors from leaks or use at work; indoor air near equipment; skin contact with the cold liquid; accidental releases during maintenance [1][3].

Short-term exposure can cause dizziness, headache, drowsiness, and eye/skin irritation; very high levels may trigger irregular heartbeat or unconsciousness; repeated high exposure has been linked to liver effects. It also depletes ozone and is being phased down [1][2][3].

Refrigeration technicians; solvent cleaning and foam workers; people in small, poorly ventilated spaces with leaking equipment; individuals with heart or liver disease [1][3].

Ensure good ventilation; fix leaks promptly; follow EPA refrigerant recovery rules; use proper PPE and avoid enclosed spaces; never heat or burn it; consider safer alternatives approved by EPA [2][3].