Can, or do, aquarium air pumps have HEPA filters on them?

Growing mushrooms… An aquarium air pump is supplying the air. I want to make sure the air being supplied is free of pollen, spores, dust, and stuff…
You guys! You’re not addressing the question at hand in any regards.
Christ Pleccy, why are you even debating whether or not an air pump sucks air? Was that even in question here? Besides, I know how my air pump works, and in my opinion, the movement of the diaphragm causes air suction.


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