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Subject: Re: [DCHAS-L] Issues with face coverings
Date: Wednesday, September 16, 2020 at 9:52:16 PM
Author: James Keating <james.k.keating**At_Symbol_Here**GMAIL.COM> 		Next by Date:
Subject: Re: [DCHAS-L] Issues with face coverings
Date: Wed, 16 Sep 2020 21:54:38 -0400
Author: ILPI Support

From: Monona Rossol <0000030664c37427-dmarc-request**At_Symbol_Here**LISTS.PRINCETON.EDU>
Subject: Re: [DCHAS-L] Issues with face coverings
Date: Thu, 17 Sep 2020 01:52:23 +0000
Reply-To: Monona Rossol <actsnyc**At_Symbol_Here**CS.COM>
Message-ID: 1613538202.5439174.1600307543870**At_Symbol_Here**mail.yahoo.com
In-Reply-To <7C01C7D5-0201-4F0A-953F-77731D643411**At_Symbol_Here**comcast.net>


a cloth or filter can capture particles, but fragrances are molecules of vapor and gases. Gases and vapors are very hard to filter out of the air and chemical cartridges using various types of activated carbon have been devised for specify types such as formaldehyde, organic vapors, acid gases and the like..  When cloth is around an odiferous vapor like perfume or a gas with a strong odor like hydrogen sulfide, there may be slight capture on the cloth leaving the faint odor, but in terms of volume, the amount remaining on the cloth is insignificant.  

So I can't see how this can be a problem.  It would be like saying breathing would be more difficult because the cloth will absorb some of the molecules of oxygen.  While some molecules of oxygen definitely are in the fibers because they are in the air, the amounts in the cloth fibers are not significant.

Monona



-----Original Message-----
From: Kim Jeskie <jeskiekb**At_Symbol_Here**COMCAST.NET>
To: DCHAS-L**At_Symbol_Here**Princeton.EDU
Sent: Wed, Sep 16, 2020 7:55 pm
Subject: [DCHAS-L] Issues with face coverings

Just a curiosity question.  We have a research group raising concerns that face coverings could inhibit one's ability to smell, a sense they believe they really need to have in a laboratory setting. I've seen publications disputing concerns around carbon dioxide entrapment and heard plenty of practical comments about being able to smell cologne through the coverings, but I haven't seen anything published on this topic.  It sounds like a weak argument to me, but I don=E2=80™t want to simply discount this concern without a good faith effort to find out if there's any real evidence that this is a valid concern.. Any thoughts/comments that you would care to share?

Thanks,
Kim

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