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  1. CDC workers sick after train crash investigation || Stephen Petty

    CDC workers sick after train crash investigation || Stephen Petty

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  3. Stephen Petty, Expert, Industrial Hygienist solution far more effective than masks

    Stephen Petty, Expert, Industrial Hygienist solution far more effective than masks

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  4. PPE Expert Stephen Petty, The Truth About Cloth Masks & N95s (Includes Presentation Slides)

    PPE Expert Stephen Petty, The Truth About Cloth Masks & N95s (Includes Presentation Slides)

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  7. Industrial Hygienist & PPE Expert Stephen Petty, The Truth About Cloth Masks & N95s

    Industrial Hygienist & PPE Expert Stephen Petty, The Truth About Cloth Masks & N95s

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  10. Stephen Petty - On the effectiveness of Masks

    Stephen Petty - On the effectiveness of Masks

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  11. How can anyone say it’s safe? Interview with industrial hygienist, Stephen E. Petty, on the testing of the water and air in East Palestine, Ohio

    How can anyone say it’s safe? Interview with industrial hygienist, Stephen E. Petty, on the testing of the water and air in East Palestine, Ohio

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  12. Stephen Petty-Engineering Expert on Masking

    Stephen Petty-Engineering Expert on Masking

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  13. Testimony: Industrial Hygienist Stephen Petty

    Testimony: Industrial Hygienist Stephen Petty

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  14. Home Inspections: What to REALLY Look at Before You Buy - Ep. 19

    Home Inspections: What to REALLY Look at Before You Buy - Ep. 19

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  15. How and Why People Get Persuaded - Ep. 07

    How and Why People Get Persuaded - Ep. 07

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  16. Children & Masks; Efficacy & Negative Effects (Part 4 of 4) - Ep. 14

    Children & Masks; Efficacy & Negative Effects (Part 4 of 4) - Ep. 14

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  18. STEPHEN PETTY ON PPE AND AEROSOLS

    STEPHEN PETTY ON PPE AND AEROSOLS

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  19. What Caused the Surfside Florida Condo Collapse? - Ep. 10

    What Caused the Surfside Florida Condo Collapse? - Ep. 10

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  22. CDC and the ASTM Mask Standard - Part 1

    CDC and the ASTM Mask Standard - Part 1

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  23. Lockdowns Don’t Work – Did this Originate from a 15-yr. Old’s Science Fair Project?

    Lockdowns Don’t Work – Did this Originate from a 15-yr. Old’s Science Fair Project?

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