Stephen Petty: Facemasks are the last thing you should do to protect from a virus

First published at 18:55 UTC on March 27th, 2021.

In this video - presentation, Stephen Petty an Engineer and Senior Industrial Hygienist answers the following questions:

What on earth is an Industrial Hygienist (IH)?
Can a cloth mask stop a virus?
What is Stokes Law and why is relevant to this disc…

SensitivityNormal - Content that is suitable for ages 16 and over