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Old Sep 6, 2021 | 12:51 am
  #4  
chx1975
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15 Years on Site
 
Join Date: Jun 2008
Location: YVR
Programs: Aeroplan, AAdvantage
Posts: 2,107
Originally Posted by Global Adventurer
An FDA approved KN95 is the most comfortable and protective in my opinion and doubling it up
is against CDC recommendations.

https://www.cdc.gov/coronavirus/2019...-of-masks.html

"KN95 [...] Do NOT wear [..] With other masks"
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