R-22 (Freon 22) is used in a lot of home air conditioners. In the mid-1990s, manufacturers started switching to R-134a refrigerant. The manufacturers' data plate on the unit provides information about what type of refrigerant is used in a given installation. Manufacture of Freon 22 is being phased out and it is extremely expensive.
Liquid coolant
There is no such thing as Air Conditioning coolant.
R134a
R134a
R134a freon............
No.
Originally this car had R12 refrigerant. It may have since been updated to accept R134a. The coolant/radiator system is not part of the air conditioning system. But the hot antifreeze-coolant is used for the heating system...
I would like to clear the air from my room. Where can I buy some cheap air conditioning units in the UK?
It strains any impurities from the coolant.
Freon but you can convert over to the new stuff
You Can't
Generally speaking that is the "R12 Freon" used in the air conditioning up until around 1995. After that R134 and R134a is used.