R-22 Refrigerant: What You Need to Know About Freon™
R-22 refrigerant (often called R-22 Freon™) is a hydrochlorofluorocarbon (HCFC) chemical used for decades in residential air conditioning systems and heat pumps. Due to its detrimental impact on the ozone layer, the U.S. EPA banned the production and import of new R-22 in 2020. While limited recycled supplies exist for servicing older units, homeowners are encouraged to transition to energy-efficient systems using eco-friendly alternatives like R-454B.
What is R-22 Refrigerant?
R-22 refrigerant is a chemical compound consisting of hydrogen, chlorine, fluorine, and carbon atoms. For many years, it was the standard choice for residential cooling because of its efficient heat transfer properties.
However, R-22 is classified as an ozone-depleting substance (ODS). When released into the atmosphere, the chlorine in R-22 breaks down ozone molecules, thinning the Earth's protective ozone layer. Consequently, the Montreal Protocol mandated a global phase-out.
Timeline of the R-22 Phase-Out:
- 2010: Manufacturers were prohibited from producing new HVAC equipment charged with R-22 refrigerant.
- 2020: The U.S. Environmental Protection Agency (EPA) completely banned the production and import of new R-22 refrigerant.
Today, Carrier remains dedicated to helping homeowners navigate this transition with innovative solutions that prioritize both environmental stewardship and home comfort.
Why is R-22 Freon™ Being Phased Out?
The primary reason for the R-22 Freon™ phase-out is environmental protection. Strict EPA regulations aim to mitigate ozone depletion and global warming risks associated with HCFCs.
- Ozone Layer Protection: HCFCs like R-22 deplete the stratospheric ozone layer, which shields the planet from harmful ultraviolet (UV) radiation. Increased UV exposure is linked to higher rates of skin cancer and eye cataracts.
- High Global Warming Potential (GWP): Beyond ozone damage, R-22 has a high GWP, meaning it traps significant heat in the atmosphere. Phasing it out is a critical step in combating climate change.
By moving away from outdated refrigerants, we are creating a healthier future. Modern alternatives like Puron Advance™ (R-454B) offer superior efficiency without the severe environmental drawbacks.
Is R-22 Still Available?
Is R-22 still available for purchase? Technically, yes, but with significant caveats. Since the 2020 ban, no "new" R-22 has been made. The only supply available is what has been recovered, recycled, and reclaimed from old systems.
Implications for Homeowners
- Scarcity: As existing stocks dwindle, R-22 is becoming increasingly hard to find.
- Rising Costs: The law of supply and demand means the R-22 refrigerant cost continues to rise, making repairs on older units significantly more expensive.
- Regulatory Restrictions: Only licensed HVAC professionals can purchase and handle R-22.
The R-22 Phase-Out and Your HVAC System
If your home relies on an older HVAC system using R-22 refrigerant, you are currently facing a choice between maintaining an aging unit or investing in a modern replacement.
Option 1: Continue Servicing Your System
You can continue to service your current AC as long as recycled R-22 is available. However, be prepared for higher HVAC repair bills. As supply vanishes, the cost to fix a refrigerant leak may eventually exceed the value of the unit itself.
Option 2: Upgrade to an Energy-Efficient Replacement
For homeowners with an aging R-22 system, replacing the equipment can be a smart investment in long-term comfort, efficiency and reliability. Modern Carrier systems designed for R-454B refrigerant offer several potential benefits, including:
- Lower Energy Bills: Modern high-efficiency HVAC units can use less electricity to cool your home than older equipment.
- Environmental Benefits: R-454B has zero ozone depletion potential and a lower global warming potential than R-22.
- Enhanced Comfort and Reliability: Newer systems can provide improved comfort, advanced features and the support of strong warranties.
Jim Snyder, owner of Irish Air in Indianapolis, Indiana, explains why upgrading an aging R-22 system can make sense for homeowners.
“If an R-22 system is still functioning, one of the biggest benefits of upgrading to a newer system is improved efficiency,” Snyder said. “Depending on the equipment and application, a new air conditioner may also provide better dehumidification and improved overall comfort compared with an older system.
“There’s also an environmental benefit to moving away from R-22. R-22 is a hydrochlorofluorocarbon refrigerant that has been phased out because of its ozone-depleting properties. As older R-22 systems are replaced, the refrigerant can be properly recovered and reclaimed rather than released into the atmosphere.”
Frequently Asked Questions
R-22 (chlorodifluoromethane) is a refrigerant gas used in older air conditioners and heat pumps. It is an ozone-depleting HCFC that has been phased out of production in the U.S. in favor of eco-friendly alternatives like R-454B.
Yes, but only as recycled or reclaimed stock. New production and imports were banned in 2020. Because supply is finite and shrinking, it is becoming increasingly expensive to source for repairs.
It is possible to retrofit an R-22 system to use a replacement like R-410A, but it requires significant modifications to the compressor and expansion valves. Given the cost of retrofitting and the age of R-22 systems, it is usually more cost-effective to replace the entire unit with a modern, energy-efficient system.
Yes, licensed technicians can recharge your system using reclaimed R-22. However, due to high costs and scarcity, we recommend evaluating if a system replacement offers better long-term value.
No. It is illegal for uncertified individuals to purchase or handle R-22 refrigerant. You must hire a licensed HVAC professional to ensure compliance with EPA regulations and safety standards.
Check the nameplate or data sticker on your outdoor condenser unit. It will list the "refrigerant" or "factory charge" type. If it says "HCFC-22" or "R-22," your system has R-22 refrigerant.
About The Author: Travis Baugh is a Digital Brand Marketing Manager for Carrier, where he develops informative, straightforward content to help homeowners better understand heating, cooling, and indoor air quality. His writing is focused on empowering homeowners to make confident, well-informed choices about their home comfort systems.
About The Expert Reviewer: Michelle Notaro is a Product Manager for Residential Air Conditioners at Carrier Corporation, where she helps shape innovative cooling solutions that meet evolving homeowner needs, industry trends, and regulatory requirements.