From: John Callen <jbcallen**At_Symbol_Here**GMAIL.COM>
Subject: Re: [DCHAS-L] Respirator Cartridges: Single Purpose vs. Combination
Date: Tue, 26 Oct 2021 21:10:09 -0500
Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**Princeton.EDU>
Message-ID: 4D0C8573-8472-4CCD-9CE3-238B273FCDBC**At_Symbol_Here**


You're more than welcome!

Here are the answers to your two questions.

i) The short answer is NO.

ii) The only reference or resource I know of, excluding the training and resources from the respirator manufacturers, would be the OSHA Course #2225 on Respiratory Protection. It does cover respirator certification, the detail of which I do not know.

If you have any additional questions, please let me know.  Thanks!

Be Safe and Stay Healthy!

All My Best,


John B. Callen, Ph. D.
3M Personal Safety Division - Retired
ACS/DCHAS Founding Member
(312) 632-0195

On Oct 26, 2021, at 15:25, Mike Cooper <mcooper**At_Symbol_Here**> wrote:

John -
Thank you. Very helpful data that you shared on the DCHAS listserv regarding respirator cartridges and break-through. 
Two quick questions:
i)                    Is there an ANSI or other standard regarding testing of cartridges for break-through that is accepted industry-wide?
ii)                   Can you recommend any other reference book (other than the 3M respirator Selection Guide which I have) that discusses this topic?
Michael N. Cooper MS, MPH, NRRPT, CIH
Industrial Hygiene Resources Ltd.
8312 W. Northview St, Suite 100
Boise, Idaho  83704
 (408) 313-2127
Adjunct Faculty 
Department of Community and Environmental Health
School of Allied Health Sciences,
College of Health Sciences 
Boise State University 

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