Learn Mask Effectiveness in 11 Seconds

Learn Mask effectiveness in 11 seconds

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For the details from expert Stephen Petty, watch more:
https://rumble.com/v45r0fk-expert-industrial-hygienist-solution-to-masks.html

Visit his podcast here: https://rumble.com/c/PettyPodcasts

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Recommended book:
Turtles All The Way Down: Vaccine Science and Myth
https://amzn.to/3Hl8rku