Hunker may earn compensation through affiliate links in this story. R134a boasts great chemical stability and is non-flammable—and it’s powerful too. R134a is a pure refrigerant that is sometimes used in blends, while R410a is itself a blend. (404A was used for supermarket freezers, ice machines, vending machines, and refrigerated transport. The basis of the rule was that by the year 2020, or model year 2021, all new manufactured or imported vehicles would not be able to use R-134a. The Best Car AC Refrigerant; 1 DuPont 3 Cans R-134a Suva Car A/C Refrigerant 2 Interdynamics MAC-134 EZ Chill Refrigerant Refill 3 Johnsen’s (6312-12PK) R-134a A/C Refrigerant 4 DuPont Suva R-134a Refrigerant 5 REDTEK A/C Refrigerant with Gauge Hose 6 Interdynamics Artic Automotive Refrigerant R-134a 7 Enviro-Safe R134a AC Refrigerant R22 refrigerant belongs to a class of chemicals called hydrochlorofluorocarbons that are being phased out because of their ozone-depleting effects. His credits include novels under the Dell imprint and for Harlequin Worldwide. In fact since 2015 the pace of vehicles beings switched over has grown and grown. R-134a is going to be around for a long time. At room temperature R410a has a pressure of nearly 200 psi, while R134a is around 70 psi. R-134a had the benefit of not containing Chlorine so with its usage there would be no danger to the Ozone layer. R134a has a boiling point of -14.9 degrees Fahrenheit, whereas R410 boils at -61.9 degrees. Its chemical formula is CF3CH2F. Most passenger cars or light trucks manufactured since 1995 were built for R-134a. By the time we got into the 1970’s the product was everywhere ranging from automobiles, refrigerators, freezers, ice machines, vending machines, industrial plants, refrigerated trucks, and on and on. In order to measure a chemical or products risk for Global Warming a new scale was created called Global Warming Potential. Everyone’s first target was R-404A as it had the absolute highest GWP of them all. It isn't the only CFC alternative on the market, and it isn't the best. One of the most popular refrigerants back then was R-717, or Ammonia. A Greenhouse Gas is a gas that can be released and get trapped in the atmosphere. The baseline measurement for this scale was Carbon Dioxide, or R-744. R22 refrigerant belongs to a class of chemicals called hydrochlorofluorocarbons that are being phased out because of their ozone-depleting effects. In the video there is a test with 1234yf leaking and then there is a test with R-134a leaking. Along with R-134a there were many other HFC refrigerants that began to take root. Available pure or as a blend, R134a also replaces R12 and R500 in chillers and both residential and commercial medium temperature refrigeration applications. The ASHRAE gave R410a a rating of A1 for safety. O’Reilly Auto Parts carries R-134a refrigerant and oils formulated to work in your vehicle's A/C system. R134a has an American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) safety rating of A1. Let’s dive in and take a look:Knowing the pressure and the temperatures associated to the machine you are working on is essential to being able to diagnose any possible issues. R134a refrigerant is an alternative that contains no chlorine and hence no ozone depletion potential. Since these first tests there have been numerous court battles and fines issued by the European Union but still Germany persisted against 1234yf. The three major kinds of refrigerant oil: Mineral oil for R12 systems (left), PAG oil for R134a systems (center), and ester oil for either Rob Siegel Note also that, unlike mineral oil, both PAG oil and ester oil are hygroscopic—that is, they absorb water.