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1. Three common indoor air pollutants are:
2. How many zones for radon does the US EPA have?
3. Which of the following is NOT a good method for getting good indoor air quality?
4. Pollutants that may come from unvented combustion include:
5. Additive air cleaners include:
6. Which of the following air cleaning methods are based on the principle of dilution?
7. True or False: Radon is the second leading cause of lung cancer.
8. True or False: Gases like carbon monoxide and ozone are usually removed from the air by filtration.
9. True or False: MERV-13 filters can work just fine in HVAC systems, even with low-static air handlers.
10. True or False: Airtightness is always good for indoor air quality.
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