This post covers the changes I’ve made to the N95 vs FFP3 & FFP2 masks article over time.
July 11, 2020 – Updated:
- Added section on risk mitigation for airplane flights.
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.