Which of these is a recognized hazard of refrigerant exposure?

Oxygen deprivation, plus cardiac effects and frostbite.

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  1. Oxygen deprivation ✔
  2. Radiation burns
  3. Lead poisoning

Why: Refrigerant leaking in a closed space can displace the air you need to breathe. EPA's test topics list oxygen deprivation, cardiac effects, frostbite and long-term hazards as exposure risks.

Huh, didn't know that: EPA's test topics note ASHRAE Standard 15 equipment room requirements include an oxygen deprivation sensor with all refrigerants.

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References

Answer: Oxygen deprivation. Refrigerant leaking in a closed space can displace the air you need to breathe. EPA's test topics list oxygen deprivation, cardiac effects, frostbite and long-term hazards as exposure risks.

  1. Section 608 Technician Certification Test Topics, US EPA www.epa.gov/section608/section-608-technician-certification-test-topics
    oxygen deprivation, cardiac effects, frost bite
    Checked 2026-10-10.

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