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Subject: Re: [DCHAS-L] ACGIH White Paper (August 2020)
Date: Saturday, August 15, 2020 at 7:03:30 AM
Author: Monona Rossol <0000030664c37427-dmarc-request**At_Symbol_Here**LISTS.PRINCETON.EDU> 		Next by Date:
Subject: Re: [DCHAS-L] ACGIH White Paper (August 2020)
Date: Sat, 15 Aug 2020 11:40:37 -0500
Author: John Callen

From: "Stuart, Ralph" <Ralph.Stuart**At_Symbol_Here**KEENE.EDU>
Subject: Re: [DCHAS-L] Community Protection Strategies in the COVID Era Webinar
Date: Sat, 15 Aug 2020 15:14:02 +0000
Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**Princeton.EDU>
Message-ID: D42FC5B7-FA7D-4E73-A468-A6579573B4E8**At_Symbol_Here**keene.edu
In-Reply-To <000001d671e1$87fddd30$97f99790$**At_Symbol_Here**rochester.rr.com>


> >I noticed that several in the Chat area were virtually begging for an assertion that a face mask provides substantial protection to the wearer... I suggest it would be very useful to explain that, while a face covering may provide some slight protection to the wearer, its primary function and use is to significantly reduce viral emissions from a wearer who is infected but asymptomatic.

I can see your point in a one on one or small group conversation where I can get follow up questions from the person to see whether they are accepting the information I am providing. I assume that they will be comparing what I have to say with what they have heard elsewhere from a wide variety of sources is varying motives and expertise.

My experience with large groups who have unknown perceptions (both of you as a speaker and of the topic itself), is that a fully developed explanation will be too complicated be shared in that setting. (This is primarily based on experiences discussing indoor air quality issues with a heterogeneous population of building occupants.)

However, I am doing a training for our childcare center staff next week. It's their annual blood borne pathogen training class, but we will clearly need to discuss the issue you raise as well. This is a setting where I feel comfortable doing this. This is because, I have a history with the group, I have some idea of what their questions will be ahead of time, and we will have time for extended questions and answers.

Thanks for raising this point.

- Ralph

Ralph Stuart, CIH, CCHO
Environmental Safety Manager
Keene State College
603 358-2859

ralph.stuart**At_Symbol_Here**keene.edu

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