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DCHAS-L Discussion List Archive

From: jeskiekb**At_Symbol_Here**comcast.net <jeskiekb**At_Symbol_Here**COMCAST.NET>
Subject: Re: [DCHAS-L] N-95 disinfection and reuse
Date: Mon, 30 Mar 2020 14:47:28 -0400
Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
Message-ID: sumj7ui9pnl2b8m3k8o7kmfl.1585593964887**At_Symbol_Here**email.lge.com


I haven't had time to read through the full set of emails on this, so sorry if this is a repeat. Battelle has some basic information on the system on the website. 

https://www.battelle.org/inb/battelle-critical-care-decontamination-system-for-covid19

Sent from my Verizon LG Smartphone

------ Original message------
From: Monona Rossol<0000030664c37427-dmarc-request**At_Symbol_Here**LISTS.PRINCETON.EDU>
Date: Mon, Mar 30, 2020 1:26 PM
T! o: DCHAS-L**At_Symbol_Here**PRINCETON.EDU;
Cc:
Subject:Re: [DCHAS-L] N-95 disinfection and reuse

Well, thank you Jack and Stanford.  Finally a nice clear presentation on these issues stating what we all probably knew  deep in our kishehs.  Monona


-----Original Message-----
From: Jack Reidy >
To: DCHAS-L**At_Symbol_Here**PRINCETON.EDU
Sent: Mon, Mar 30, 2020 12:11 pm
Subject: Re: [DCHAS-L] N-95 disinfection and reuse

All,
 
As a side note, if you saw the original version of the Stanford item, they have since expanded on it significantly, including adding many disclaimers. https://stanfordmedicine.app.box.com/v/covid19-PPE-1-1
 
Sincerely,
 
Jack Reidy (he/him)
Research Safety Specialist
Environmental Health & Safety
Stanford University
484 Oak Road, Stanford, CA, 94305
Tel: (650) 497-7614
 
 
 
From: ACS Division of Chemical Health and Safety > On Behalf Of Reinhardt, Peter
Sent: Friday, March 27, 2020 12:48 PM
To: DCHAS-L**At_Symbol_Here**PRINCETON.EDU
Subject: [DCHAS-L] N-95 disinfection and reuse
 
Colleagues,
 
On 25 March the Stanford School of Medicine published a nice Q&A on the shortage of face masks and N-95 respirators. See file:///Users/pareinhardt/Downloads/mask-ppe-EBM-Stanford%20Medicine%20v1.2-3-25-2020.pdf
 
On pages 5-6 there is a good discussion of the various methods that can be used to disinfect N-95s, including a helpful table and references. One refence shows that hot water vapor from boiling water for ten minutes is an effective decontamination method.
 
At Yale, we plan to use vaporized hydrogen peroxide to decontaminate and reuse N-95s using the methods described here:
 
https://www.safety.duke.edu/sites/default/files/N-95_VHP-Decon-Re-Use.pdf
 
https://www.fda.gov/media/136386/download
 
Pete Reinhardt
Director, Yale Office of Environmental Health and Safety
 
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