By using the environmentally friendly refrigerant CO2 with a GWP of 1, all cooling requirements can be met safely, efficiently and in compliance with all the applicable standards and laws. CO2 as a high-pressure refrigerant with very good heat transfer qualities can be used without major restrictions due to its classification as A1 refrigerant. In the commercial refrigeration sector it has become the standard refrigerant because booster systems are very often used there.  CO2 is also used in industry, for example for storage cooling, and for heat pump processes. In addition, CO2 refrigeration systems are subsidisable according to BAFA guidelines for the promotion of refrigeration and air conditioning systems.