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Subject: Re: [DCHAS-L] Goggles & Face mask=fogging
Date: Wednesday, September 2, 2020 at 1:50:24 PM
Author: Debra M Decker <00001204b93f9a5e-dmarc-request**At_Symbol_Here**LISTS.PRINCETON.EDU> 		Next by Date:
Subject: Re: [DCHAS-L] Goggles & Face mask=fogging
Date: Wed, 2 Sep 2020 18:14:28 +0000
Author: "Gmurczyk, Marta"

From: NEAL LANGERMAN <neal**At_Symbol_Here**CHEMICAL-SAFETY.COM>
Subject: Re: [DCHAS-L] Goggles & Face mask=fogging
Date: Wed, 2 Sep 2020 11:11:05 -0700
Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**Princeton.EDU>
Message-ID: CAOo07Zo0eGgT_OH6kqQt5+gAP32EhvzAqUOOPy2uLkmEPYxQsg**At_Symbol_Here**mail.gmail.com
In-Reply-To


Divers use a surfactant but leave the surface wet. Simply rinsing the inside of goggles with a detergent solution rinsing and drying removes the surfactant film.

Spit works the same way with protein being the surface tension reducer. Again, when the mask is dried the antifog property is gone.

Sorry, no joy from the fish are friends world.
Neal

Sent from Neal Langerman's NEXUS 6.
Standard client confidentiality terms apply.

On Wed, Sep 2, 2020, 10:50 Debra M Decker <00001204b93f9a5e-dmarc-request**At_Symbol_Here**lists.princeton.edu> wrote:

<Has anyone found a workable solution to the problem with face mask+goggles= fogging in student chemistry labs?>

I wonder if any of the scuba divers in our midst (I'm looking at you, Neal Langerman), might have ideas. I know this has been discussed several times over the years but don't recall there being any really good solutions.

D-

Debbie M. Decker, ACS Fellow

DCHAS Councilor

Programming Co-Chair

Retired Chemistry Dept. Safety Manager

dmdecker**At_Symbol_Here**ucdavis.edu

(916)616-7548

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