Why does every building get dusty inside?
In: Earth Science
Dust is primarily made of several things: dead skin cells, fungal spores, tiny fibers from clothes etc, loose bug parts, dust mites and other teeny bugs, and their poop (dust mite poop is what triggers dust allergies). It’s pretty much impossible to keep them all out unless the room is hermetically sealed and no humans are left inside, which is not ideal for most buildings.
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