What happens with dust when we breathe it in, where does it go?

Question

We breathe in dust all the time; dirt in the air, dead skin cells, smog, sawdust, etc. where does this all eventually go? It can’t physically all just build up or we would eventually suffocate right?

In: 48

Answer 1

Our bodies become angry at breathing in dust mite poop and try to rage quit.

Source: am asthmatic.