Approx. 7 Min

PPE developer on N95 masks: 70% of what you breathe is not filtered

By Tamara Ugolini

August 06, 2020

Since the beginning of the COVID-19 crisis, we’ve all been learning new words and phrases, and one of those is PPE — personal protective equipment. Well, Ron Mitchell knew all about that decades before the rest of us, because he helped develop it.

While covering an anti-mask event in Cobourg, I ran into Ron, and our conversation was so interesting, we’ve decided to show you the whole thing. If anyone is qualified to explain how masks work (or don’t), it’s Ron Mitchell.

For 30 years, Ron assisted in developing PPE for the nuclear industry: plastic suits, hoods, electric shock resistant footwear, a diffusion sampler and, of course, masks.

(See link for article here:



Best 7 minutes you could ever spend.  Very clear – MASKS DON’T WORK!

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