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Honored Contributor
Posts: 13,510
Registered: ‎05-23-2010

The basics on face masks, barrier masks, surgical masks, respirators

[ Edited ]

The CDC explains what each type of device is in an easy to read question and answer format. 

 

 

https://www.fda.gov/medical-devices/coronavirus-covid-19-and-medical-devices/face-masks-barrier-face...,