-----Original Message-----
From: John Callen <jbcallen**At_Symbol_Here**GMAIL.COM>
To: DCHAS-L**At_Symbol_Here**Princeton.EDU
Sent: Thu, Jul 2, 2020 9:38 pm
Subject: [DCHAS-L] Leaf Mask
All:
Has anyone seen this subject device?
It is not a NIOSH-approved respirator.
Comments?
John B. Calen, Ph.D.
3M Personal Safety Division - Retired
ACS/DCHAS Founding Member
(312) 632-0195
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