Is R-32 a safe refrigerant?

R-32 belongs to the category of lower flammable refrigerants (class 2L in ISO817 standard), therefore, it can be safely applied in a wide range of air conditioner and heat pump applications. Instructions from the manufacturers of R-32 equipment and from the suppliers of R-32 refrigerant cylinders must be followed, as is the case for any type of refrigerant.

R-32 will not ignite if the concentration level in a room stays below the lower flammable limit. International and European safety legislation and standards such as IEC60335-2-40 and ISO5149 define guidelines to remain well below the lower flammable limit in case of accidental leakage.