Quick answer
R-22 hasn't been produced or imported in the U.S. since January 1, 2020. Systems that use it still work, but refrigerant for repairs now comes only from recycled supply — so leaks are expensive to fix. A major leak on an R-22 system is often the point where replacing makes more sense.
What is R-22?
R-22 (often called by the brand name Freon) was the standard refrigerant in home air conditioners for decades. It was phased out under the Clean Air Act because it damages the ozone layer.
Does my system use it?
If your system was installed before 2010, there's a good chance. Check the label on the outdoor unit — it lists the refrigerant. R-22 or HCFC-22 means yes. Most systems installed since then use R-410A.
What it means if you have a leak
The remaining R-22 supply is recovered and recycled, so it costs much more than newer refrigerants. Topping it off without fixing the leak just means paying again later.
Can't you just switch refrigerants?
Not by simply swapping. R-410A runs at much higher pressures and needs different equipment, so an R-22 system can't take it. There are "drop-in" alternatives, but they can affect performance and warranties — talk to a technician before using one.
What about R-410A?
R-410A is being phased down too. New home systems are moving to lower-impact refrigerants such as R-454B and R-32. If you're replacing, ask which refrigerant the new system uses.
Your options
- No leak, cooling fine: keep it maintained — no need to replace it just because of R-22
- Repair that doesn't involve refrigerant: repairing is usually fine
- Leak or compressor failure: get a price on both repair and replacement
Weighing it up? Read repair or replace: how to decide.
When to call a pro
- Cooling has been getting weaker over weeks
- You hear hissing or bubbling near the lines
- There's ice on the refrigerant lines
- You're facing a major repair on an R-22 system