The R404a refrigerant is non-toxic, non-flammable, and ozone-friendly. It is also hazardous because the chemical compounds with R404a refrigerant do not contain any toxic chemicals or compounds. The volume of the R404a refrigerant is non-toxic, non-flammable, and ozone-friendly.
No, R404a refrigerant is safe to the user because it is low-toxic chemical compound. Hence, the R404a refrigerant is not safe because it is in austic state.