Anybody who has worked in a clean room shouldn’t be overly surprised by this
Why is that? For those of us who haven’t worked in clean rooms
Clean rooms are classified by the particulate count measured in the air. The extremely sterile atmosphere is achieved significantly by controlling the airflow strictly (out vents in the ceiling and in vents in the floor). You still will accumulate dirt in nooks and crannies which are difficult to clean properly, which doesn’t actually cause the room to fail particle counts.
Humans are big ol smelly beasts
Yes, hard yes. “Clean room” should not be confused with “sterile room”.
But are clean rooms more sterile compared to normal rooms?
Clean rooms are about particulates in the air and do not address sterile conditions at all. You want medical locations to be sterile, while you want assembly of chips and lasers and shit to be clean.
In Space, nobody can hear your Psychrophiles mutate.
TIL clean rooms can crawl.