A2L mildly-flammable refrigerants will be phased into the HVACR industry to replace Hydroflourocarbon (HFC) refrigerants in the residential marketplace. While mildly-flammable refrigerants are seemingly better for the environment, the handling and safety precautions that go along with their use are different than HFC or CFC refrigerants. This 2 hours course is a must take for all technicians in your company.