SAE reconfirms Honeywell's low-global-warming refrigerant as safe and effective

Technical experts from numerous car manufacturers evaluate HFO-1234yf.


HFO-1234yf is being adopted by automakers in part to meet the European Union's MAC Directive, which aims to reduce the greenhouse gas emissions of air-conditioning systems in passenger cars and light commercial vehicles. The directive requires that refrigerants in all new type vehicles sold in Europe after Jan. 1, 2013, have a global-warming potential (GWP) below 150 and that all cars sold after 2017 meet the lower GWP requirement. HFO-1234yf has a GWP of 4, compared with the current refrigerant, HFC-134a, which has a GWP of 1,430.

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