The present invention relates to compositions comprising flammable
refrigerant, fire hazard-reducing agent, and optionally a lubricant
suitable for use in a refrigeration or air conditioning apparatus.
Further, the present invention relates to compositions comprising
lubricant and fire hazard-reducing agent and methods for reducing
flammability of flammable refrigerant, for delivering a fire
hazard-reducing agent to a refrigeration or air conditioning apparatus,
and for replacing a non-flammable refrigerant with a flammable
refrigerant.