Blupura Srl says that hydrocarbon (HC) natural gases are one of the most climate-?friendly and cost efficient refrigerants to heat, cool and freeze. Within the Greenpeace report, the first page explains what natural refrigerant gasses are, and their application in the market. The biggest markets for HCs are domestic refrigerators and freezers. Isobutane is used in 100% of all new home fridges in Germany, and in 50% of all new Chinese models. HC refrigerators are also sold in Western Europe, Argentina, Australia, Brazil, Cuba, India, Indonesia, Japan, Pakistan and Russia.

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Overall, there are more than 300m HC refrigerators running worldwide. Propane and CO2 are used in cascade supermarket refrigeration systems to provide high temperature and low temperature cooling for foodstuff. Blupura commented that it was vital to stay ahead of this trend. The European community has started to ban synthetic refrigerants, such as R134, which are commonly used in water cooler manufacture.