Coronavirus size 0.1 micrometers
Pollen 250 times bigger.
Masks don’t work for hay fever
Andronicus on Nostr: Grass pollen size is 25 micrometers Coronavirus size 0.1 micrometers Pollen 250 times ...
Grass pollen size is 25 micrometers
Coronavirus size 0.1 micrometers
Pollen 250 times bigger.
Masks don’t work for hay fever
Coronavirus size 0.1 micrometers
Pollen 250 times bigger.
Masks don’t work for hay fever