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Old Apr 30, 20, 9:38 pm
Join Date: Feb 2012
Programs: Hertz PC
Posts: 649
Originally Posted by Nagasaki Joe View Post
Good point. As late as the end of March (possibly even a little later), the WHO was advising that masks were useless against COVID-19 and they advised not to wear them.
I'm not sure how the science suddenly changed, but now the WHO recommends everyone wear masks. So yes, not good messaging, but the time of the photo may give the answer.
Most people dont understand how masks and respirators work.

Best thing to keep you from breathing in particles is an N95 respirator that seals tightly on your face. 2 problems with these. 1. People dont adjust the metal bands around nose to make air tight. 2. If you have Covid should not wear these because valve on mask blows your particles out.

Surgical mask: They are actually designed to keep the person wearing it from contaminating sterile environment. Not as good as an N95 but will effectively keep most particles out.

Bandana and other cloth. Same as Surgical mask keeps you from spreading covid more then protecting you from getting covid.
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