SKILLCAT EPA 608 EXAM 2026 PROFESSIONAL
REVIEW PACK BUNDLED QUESTION BANK
◉ What absorbs and reflects harmful UV rays from the sun? Answer:
Ozone, but ground level ozone does not.
◉ How does ozone depletion affect humans? Answer: Increased risk of
skin cancer and cataracts.
◉ Is there evidence that refrigerants are in the stratosphere? Answer:
Yes.
◉ What is a true statement about chlorine in the atmosphere? Answer: A
single chlorine atom can survive for years.
◉ How many atoms of oxygen does ozone have? Answer: 3
◉ Where is the majority of ozone located? Answer: In the stratosphere,
not the troposphere.
◉ How many molecules of ozone can three molecules of chlorine
destroy? Answer: 300,000.
,◉ What is the major function of ozone in the stratosphere? Answer: To
absorb and reflect UV rays from the sun.
◉ What is the primary source of chlorine in the stratosphere? Answer:
Emissions of refrigerant chemicals like CFCs and HCFCs by humans.
◉ What molecule is responsible for ozone layer destruction? Answer:
Chlorine.
◉ What are the effects of ozone depletion? Answer: Decreasing crop
yields.
◉ Which refrigerant chemicals destroy the ozone layer? Answer: CFCs
and HCFCs.
◉ Who does ozone depletion affect? Answer: People all over the world.
◉ What does the Clean Air Act state about refrigerants that deplete
ozone? Answer: It is a violation to purposely vent them.
◉ Can technicians service equipment containing phased-out
refrigerants? Answer: Yes.
, ◉ Where can technicians obtain refrigerants after they are phased out?
Answer: From recovered or reclaimed refrigerant.
◉ Can refrigerant be resold? Answer: Yes, if it meets AHRI Standard
700 specifications.
◉ What refrigerants must equipment be certified to recover? Answer:
CFCs, HCFCs, and HFCs.
◉ Who can you sell R-22 refrigerant to? Answer: A technician or
business with Section 608 Certification.
◉ Can recovered R-12 refrigerant be used in another person's device?
Answer: Yes, if it has been reclaimed to AHRI Standard 700
specifications.
◉ When were all CFCs phased out in the United States? Answer: 1995
◉ When were R-22 and R-142b phased out in the United States?
Answer: 2020
◉ When will all HCFCs be phased out in the United States? Answer:
2030
REVIEW PACK BUNDLED QUESTION BANK
◉ What absorbs and reflects harmful UV rays from the sun? Answer:
Ozone, but ground level ozone does not.
◉ How does ozone depletion affect humans? Answer: Increased risk of
skin cancer and cataracts.
◉ Is there evidence that refrigerants are in the stratosphere? Answer:
Yes.
◉ What is a true statement about chlorine in the atmosphere? Answer: A
single chlorine atom can survive for years.
◉ How many atoms of oxygen does ozone have? Answer: 3
◉ Where is the majority of ozone located? Answer: In the stratosphere,
not the troposphere.
◉ How many molecules of ozone can three molecules of chlorine
destroy? Answer: 300,000.
,◉ What is the major function of ozone in the stratosphere? Answer: To
absorb and reflect UV rays from the sun.
◉ What is the primary source of chlorine in the stratosphere? Answer:
Emissions of refrigerant chemicals like CFCs and HCFCs by humans.
◉ What molecule is responsible for ozone layer destruction? Answer:
Chlorine.
◉ What are the effects of ozone depletion? Answer: Decreasing crop
yields.
◉ Which refrigerant chemicals destroy the ozone layer? Answer: CFCs
and HCFCs.
◉ Who does ozone depletion affect? Answer: People all over the world.
◉ What does the Clean Air Act state about refrigerants that deplete
ozone? Answer: It is a violation to purposely vent them.
◉ Can technicians service equipment containing phased-out
refrigerants? Answer: Yes.
, ◉ Where can technicians obtain refrigerants after they are phased out?
Answer: From recovered or reclaimed refrigerant.
◉ Can refrigerant be resold? Answer: Yes, if it meets AHRI Standard
700 specifications.
◉ What refrigerants must equipment be certified to recover? Answer:
CFCs, HCFCs, and HFCs.
◉ Who can you sell R-22 refrigerant to? Answer: A technician or
business with Section 608 Certification.
◉ Can recovered R-12 refrigerant be used in another person's device?
Answer: Yes, if it has been reclaimed to AHRI Standard 700
specifications.
◉ When were all CFCs phased out in the United States? Answer: 1995
◉ When were R-22 and R-142b phased out in the United States?
Answer: 2020
◉ When will all HCFCs be phased out in the United States? Answer:
2030
