From: Daniel Kuespert <0000057d3b6cd9b7-dmarc-request**At_Symbol_Here**LISTS.PRINCETON.EDU>
Subject: Re: [DCHAS-L] [External] [DCHAS-L] COVID-19 Question
Date: Mon, 23 Mar 2020 13:53:11 -0400
Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
Message-ID: C3ECB796-C675-43EB-8F25-7B180F76C51D**At_Symbol_Here**me.com
In-Reply-To


I would think that much of the "single patient" rule was to avoid cross-contamination between patients, not to protect the user. Since there's essentially a monoculture of COVID-19 patients in all the hospitals, perhaps it would be tolerable to reuse between that population and only swap respirators for non-COVID-19 patients. There's always the chance of something else opportunistic involved with each individual patient, but given that the choice is used respirator or no respirator, it's probably a tolerable (I don't want to say "acceptable") risk.


Regards,
Dan Kuespert

On Mar 23, 2020, at 13:34, McGrath Edward J <Edward.McGrath**At_Symbol_Here**REDCLAY.K12.DE.US> wrote:

I'm married to a nursing supervisor of a home health agency.  Here's the answer I got:

1. N95 masks can be reused in a home setting if it is not contaminated on the inner surface, used with a single client (patient) only (and by a single user only.  Hopefully, that is already assumed), and not wet.  If it is to be reused, it should be stored in a paper bag (plastic would encourage mold contamination).
 
2.  If the above conditions are held, there is no need to sanitize them.  In other words, no sanitization protocol is appropriate.
 
3.  Regarding building their own mask:  NO NO NO NO NO!!!!!!  (that is a direct quote).
 
Eddie McGrath
 
Edward J. McGrath
Supervisor of Science
Red Clay Consolidated School District
1502 Spruce Avenue
Wilmington, DE  19805
 
(302) 552-3768
 
We did not inherit the Earth from our parents.  We borrowed it from our children.
 
 
From: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU> On Behalf Of NEAL LANGERMAN
Sent: Monday, March 23, 2020 1:23 PM
To: DCHAS-L**At_Symbol_Here**PRINCETON.EDU
Subject: [External] [DCHAS-L] COVID-19 Question
 
All
What do you say to a healthcare provider (assume they are in your core family) who has been told to ration N95 masks. Told to reuse them.
Healthcare provider wants to know about sanitizing them; about effectiveness; about building their own mask.
FYI, here is some NIH published data:
 
Reduction to exposure by virus-like particulates. Based on article published by NIH
Mask Type                                          % reduction of particulates
N95                                                                 99
SURGICAL MASK                                        74
HOMEMADE TEA CLOTH MASK             58
 
Also, the Elan Musk companies delivered 50,000 N95 masks to a hospital today.
 
nl
 
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