refrigerant issue

[Lc_shi]

Hi Sirs
I've read about an article about refrigerant use in AC area. it says that Japan most use R410a/Europe r134a/America R22.Here we still use R22 most. I'm not sure if it's true.
How do you think the natural refrigerant will replace current refrigerants?

regards
LC-:)

[Peter_1]

We mainly use R404a in supermarket packs, R410a is becoming common in AC but R407c is still used, new AC on R22 are forbidden, R134a on cooling chamber systems and sometimes in chillers.

[DavidHang]

R22 will be forbidden after some years according to the protocol, so some natural refrigeration should be found quickly.