R22 is made of CHCLF2 (chlorodifuoromethane ), it will destroy ozonosphere.
R410A is a new environmentally friendly refrigerant, does not destroy the ozonosphere, the working pressure for the ordinary R22 air conditioning about 1.6 times, cooling (warm) high efficiency, do not destroy the ozonosphere.
R32, is made of CH2F2 (difluoromethane). It is non-explosive, non-toxic, flammable, but still a safe refrigerant. R32's energy-saving, green, and ozone-free layer has become one of the new stars of modern refrigerants.