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r22
No, refrigerants cannot be blended.
No.
ef22a is a refrigerant. It is used in place of R22. It is a Hydrocabon refrigerant. Very efficient.....
One refrigerant that is chlorine free is cfc-22. This refrigerant has gained popularity in the past few years in many homes.
R22
Most new equipment is built for and charged with R410a, a refrigerant with much higher pressures than the R22 used for decades, R22 units are still available, dry charged however, you must fill them with R22 onsite. This is how new R22 compatible equipments being sold still.
No
R22
R22 r123
R22
I think that it's olive oil, but I/m not sure