From: "Burgmeier, Sally" <sallyburgmeier**At_Symbol_Here**AUGUSTANA.EDU>
Subject: [DCHAS-L] Cloth face masks trapping fumes
Date: Tue, 23 Jun 2020 15:10:57 -0500
Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**Princeton.EDU>
My teaching colleagues are concerned that cloth or surgical face masks worn by students or faculty in a chemistry lab setting where volatile chemicals are used, for example organic lab, could trap fumes within the masks and therefore be harmful to the user? They are wondering if face shields should be worn in labs instead of cloth face masks to prevent covid19 spreading, but mot allow chemical fume buildup.
We do have fume hoods for every student to use. Any guidance on this issue?
Chemistry Safety Officer
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