Core (Universal)Question 8 of 240
R-22 is best classified as which type of refrigerant?
a.An HCFC, which has some ozone-depleting potential
b.A hydrofluorocarbon (HFC) with zero ozone depletion
c.A natural refrigerant
d.A hydrofluoroolefin (HFO) with very low GWP
Explanation
R-22 is a hydrochlorofluorocarbon (HCFC), which still contains chlorine and therefore has some ozone depletion potential, though less than a CFC. It is not an HFC, an HFO, or a natural refrigerant. Because HCFCs deplete ozone, R-22 was placed on a production and import phaseout schedule.
This topic, taught in full in the EPA Section 608 Certification guide. EPA 608 Universal Study Guide (2026) — Core + Type I/II/III, with the 2027 A2L update — PDF + EPUB, $14.99 · 14-day refund →
Practice all 240 questions free — no signup required.
Own the complete EPA Section 608 Certification guide — PDF + EPUB, $14.99 →
Related questions on this topic
- What does ODP stand for when comparing refrigerants?
- A supplier tells a technician that R-410A has an ODP of zero but a high GWP. What does GWP measure?
- Which of the following refrigerants is a CFC that has already been phased out of production?
- As of January 1, 2020, what happened to R-22 (HCFC-22) in the United States?
- The AIM Act of 2020 directs EPA to phase down the production and consumption of which class of refrigerants?
- The 'three R's' of responsible refrigerant management are:
Last reviewed: · editorial process
PrepPass team · Verified against EPA Section 608 Technician Certification Exam · How we review