KN95 with gaps = effective aerosol reduction of 3% instead of cloth's 10%. So of course they will. https://t.co/WoUuGPGf1X— Phil Kerpen (@kerpen) January 6, 2022
These thick masks will be even less effective at reducing aerosols (~3%) than cloth masks (~10%) if they have 3mm gaps. Can't wait to see them policing fit! https://t.co/nTJFMwvM4O— Phil Kerpen (@kerpen) January 10, 2022
Of of an abundance of stupidity.
With (inevitable) gaps a thick mask reduces aerosols ~3%, even more useless than a cloth mask's ~10%.https://t.co/2GqCW50oyC
Doubling down on failure. CDClownshow https://t.co/yQsqU9UsbY— Phil Kerpen (@kerpen) January 11, 2022
Let Americans breathe how we want!!!!!!!!!!!