# A/C Refrigerant: What’s the Difference Between R-22 and R-410A? > To understand the difference between R-22 and R-410A, you have to realize that your A/C system works. [![a/c refigerant](https://bc.rodenhiser.com/wp-content/uploads/2014/08/ac-refigerant-200x300.jpg)](https://bc.rodenhiser.com/wp-content/uploads/2014/08/ac-refigerant.jpg)Refrigerant is the lifeblood of your A/C system and the compressor the lifeblood is the heart. To understand the difference between R-22 and R-410A, you have to realize that your [A/C system works](https://bc.rodenhiser.com/rodenhiser-blog/your-home-air-conditioner-how-it-works.html) by cycling the refrigerant through several heat exchanges, much like your refrigerator does. [![a/c refigerant](https://bc.rodenhiser.com/wp-content/uploads/2014/08/ac-refigerant-200x300.jpg)](https://bc.rodenhiser.com/wp-content/uploads/2014/08/ac-refigerant.jpg) ## The Basics The hydro-chlorofluorocarbon (HCFC) refrigerant R-22 was common in air conditioners prior to 2010, but has been banned in new air conditioners as of 2010, as part of the [Montreal Protocol](http://www.epa.gov/ozone/title6/phaseout/22phaseout.html) for protecting against further damage to the ozone layer. R-22 units use mineral oil to lubricate the compressor. The HCF refrigerant R-410A is approved for use in newly manufactured A/C units and is becoming the new standard in the A/C industry. R-410A can operate at higher pressure than R-22, and as a result, can take in and expel more heat than its predecessor. R-410A compressors use a synthetic oil for lubrication that mixes more completely with R-410A than mineral oil does with R-22, which means there's less wear to the compressor during operation. All of these factors are making the new generation of A/Cs more durable and energy efficient than before. ## Charging A/C Systems While no new R-22 units are being produced, there are older A/C systems installed that use the refrigerant. Never try to mix the two refrigerants. The difference between R-22 and R-410A means mixing can cause a safety hazard. Don't put R-410A into a compressor built for R-22. It isn't built for the increased pressure and will crack and break. For more information on A/C refrigerant and the difference between R-22  and R-410A systems, contact [Rodenhiser Plumbing, Heating & Air Conditioning](http://rodenhiser.com/call-rodenhiser.html). 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Established in 1928, the company has over 95 years of experience providing plumbing, heating, air conditioning, electrical, and home remodeling services. Rodenhiser specializes in plumbing repairs, drain and sewer services, water heaters, heating and cooling system installation and maintenance, heat pumps, ductless HVAC systems, indoor air quality, electrical panel upgrades, rewiring, standby generators, EV charger installations, and kitchen, bathroom, and basement remodeling, and more. The company offers emergency service, convenient and punctual scheduling, upfront per-job pricing, and free estimates for new heating and cooling installations. All work is backed by written warranties and a satisfaction guarantee. Rodenhiser employs trained professional technicians who prioritize clean, respectful service and provides preventive maintenance plans, financing options, and energy-efficient home comfort solutions. 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