Freon gas 404 (R-404A) is a pseudo-azeotropic mixed refrigerant composed of the three ingredients R-125, R-134a, and R-143a. It is used across a variety of low and medium temperature applications including super market freezers/refrigerators, vending machines, ice machines, refrigerated transport, and industrial refrigerant systems.
R-410A is a near-azeotropic mixture of difluoromethane (CH2F2, calledR-32) and pentafluoroethane (C2HF5, called R-125), which is used as a refrigerant in air conditioning applications. Unlike many haloalkane refrigerants it does not contribute to ozone depletion, and is therefore widely used.
[1] Please importantly note that only the relevant portion of the related is displayed above. You may refer to the said customs ruling for the entire ruling explanation.
[1]. https://rulings.cbp.gov/ruling/N312022