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1. True or False: Formaldehyde is a potential harmful byproduct of photocatalytic oxidation (PCO) products.
2. True or False: UV is extremely effective at killing or deactivating microbes or viruses in the airstream but not on surfaces.
3. True or False: There has been at least one successful lawsuit against a company that manufactures PCO products.
4. Ozone is:
5. What particle size does the industry focus on?
6. True or False: Tighter houses tend to let fewer outdoor contaminants in than leaky houses.
7. True or False: Homes and ducts have "biomes" with unique makeups of bacteria, fungi, and over microbes.
8. Mold is a byproduct of:
9. True or False: Charcoal is effective at managing odors for several months on end.
10. Which of the following organs does PM 2.5 NOT affect?
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