Refrigerants are mainly Class-2.1/2.2 dangerous goods, and some are classified as Class 2.3. Some halogenated hydrocarbons (especially chlorofluorocarbon) are the most common working medium in traditional industry and life, but they are phased out because they result in holes in the ozone layer.

They are now gradually replaced by new pollution-free working media. The company is skilled in dealing with R32, R125, R125A, R152, ammonia, sulfur dioxide, and non-halogenated hydrocarbon refrigerants.