Last updated by The POOG on August 30, 2020.

I’ve completed a study of literature on the efficay of the different types of masks available to the public: Disease Transmission and Masks. One study noted that aerosol transmission is the prevalent form of infection. On this basis, face shields which I have not covered, would be the least effective form of protection due to the air leakage issue.

As usual, I am always looking for quality source material for what I write. If you have any citations, studies or data, please send them to me.

If you think this material worthwhile, please pass it on to friends.

Categories: COVID-19


I started a blog in 2011 called The POOG, an acronym for "pissed off old guy". This is the current incarnation.


wuffo48 · November 6, 2020 at 4:09 pm

great research on mask effectiveness. I have asthma and compromised lung issues. I was required to wear a mask and climb a flight of stair. It caused a sever bout of respiratory distress. I will carry my oximeter and when required to mask up I will monitor my SPO2 and refuse to comply to mask regulations if my O2 drops below 90%

Anonymous · November 6, 2020 at 11:30 pm

I’m currently researching the legal position of masks in Ontario Canada. Check out:

I hope to have it finished in a couple of days. I intend to stop waering a mask but want to understand my legal position.

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