This post covers the changes I’ve made to the N95 vs FFP3 & FFP2 masks article over time.

May 22, 2020 – Updated:

  • Added section and research on indoor vs outdoor spread.

May 13, 2020 – Updated:

  • Added section on selenium

May 12, 2020 – Updated:

  • Added section on shaving when using disposable respirators
  • Updated Vitamin D section to include the 2 latest studies on Covid-19 and vitamin D status – including listing what are considered normal, insufficient and deficient blood levels of 25(OH)D in those studies.
  • Add list from European Safety Federation of fake/suspicious PPE certificates.
John

Posted by John

Note: Not a Medical Doctor or PhD. I'm a researcher and writer, with a focus on the subjects of health and longevity. My intent is to write about scientific research in an accessible, understandable way. If you believe something I've stated needs a reference, and I haven't done so, please let me know in the comments. Follow on: Twitter

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3 Comments

  1. Avatar

    Excellent work – thanks so much for this!

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  2. Avatar

    So very helpful. Thank you very much! Cleared up confusion on masks and respirators. Also going to increase my selenium intake and get D3 supplements to beef up immune system!

    Reply

  3. Avatar

    thank you 🙂

    Reply