HFC R- 404A is an established alternative to R-22 and R-502. Please note that for reduced GWP, HFC R-407A offers a good alternative.

R-404A is a pseudo-azeotropic mixed refrigerant composed of the three ingredients R-125, R-134a, and R-143a, and was developed as a substitute refrigerant for R-502 and R-22, used in commercial refrigerator equipment for low and medium temperature ranges. It possesses outstanding properties as a refrigerant for showcases, refrigerated vehicles, ice makers, and other equipment.

R-404A is subject to the High-Pressure Gas Safety Act of Japan, so be sure to use it in accordance with this Act or your local rules.

If there is a leak of R-404A in large quantities, there will be a danger of oxygen deficiency, so quickly evacuate from the work site to an upwind location or a high elevation.

Inhalation of R-404A may cause irritation. If R-404A in high concentrations is inhaled, there may be a danger of asphyxiation or heart attack, and it may also cause cardiac arrhythmia, so be sure to exercise sufficient caution. Be sure to sufficiently arrange proper ventilation when using R-404A.

If R-404A in high concentrations is inhaled, move to a location with fresh air, rest sufficiently, and then seek medical attention from a specialized physician.

The vapor of R-404A may cause irritation to the eyes or skin. Also, if its liquid enters the eyes or contacts the skin, there will be a danger of frostbite. Be sure to wear proper protective equipment when performing work. If it enters the eyes, immediately wash them with clean, running water for 15 minutes or longer. If it comes into contact with the skin, wash the affected area thoroughly with plenty of water. If it enters the eyes or comes into contact with the skin in large quantities, seek medical attention from a specialized physician.

Composition (wt%) R-143a/R-125/R-134a = 52/44/4