Which model uses the most environmentally friendly refrigerant?

Which model uses the most environmentally friendly refrigerant?

Daikin - Daikin became the world’s first company to succeed in applying R-32 to air conditioners by leveraging its expertise as the only manufacturer that develops and manufactures both air conditioners and refrigerants. The company consistently launches eco-friendly models with a 74% reduction ratio in greenhouse gas production over its fiscal 2005. Daikin also releases annual reports to share its eco-friendly efforts.

Panasonic - The company also recently introduced its R32 refrigerant which has zero impact on the ozone layer and an even lower impact on global warming. 

Note also the below environmentally friendly options:

Brivis - Specialising in ISO 9001 accredited coolers made for Australian climates, Brivis also aims for sustainability in its products. The AC giant is well-known for its evaporative cooling systems that use less electricity, which in turn decreases its greenhouse gas contribution. 

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