A2L PRACTICE SOLUTION TEST 2026
TESTED QUESTIONS AND ACCURATE
ANSWERS GRADED A+
●● What is a potential health consequence of inhaling hydrogen fluoride
combustion by-products from A2L refrigerants?.
Answer: Pulmonary Edema
●● When did the phase-down of R-410A begin?.
Answer: 2022
●● When will the EPA prohibit the production of new equipment using
R-410A?.
Answer: 2025
●● What does the classification 'A2L' stand for?.
Answer: Non-toxic, Flammable, Low Burning Velocity
●● Which item is NOT required on the UL-mandated label for
flammable refrigerant systems?.
Answer: Name of the manufacturer
TESTED QUESTIONS AND ACCURATE
ANSWERS GRADED A+
●● What is a potential health consequence of inhaling hydrogen fluoride
combustion by-products from A2L refrigerants?.
Answer: Pulmonary Edema
●● When did the phase-down of R-410A begin?.
Answer: 2022
●● When will the EPA prohibit the production of new equipment using
R-410A?.
Answer: 2025
●● What does the classification 'A2L' stand for?.
Answer: Non-toxic, Flammable, Low Burning Velocity
●● Which item is NOT required on the UL-mandated label for
flammable refrigerant systems?.
Answer: Name of the manufacturer
