Half Mask Respirators as N95 Medical Masks

http://www.safetynewsalert.com/study-suggests-possible-alternative-during-n95-respirator-shortage/ “www.safetynewsalert.com/study-suggests-possible-alternative-during-n95-respirator-shortage/”

Training and Fit Testing of Health Care Personnel for Reusable Elastomeric Half-Mask Respirators Compared With Disposable N95 Respirators
https://jamanetwork.com/journals/jama/fullarticle/2763841

The MSA G-1 Facepiece is what I use with West Danby Fire/Rescue. WestDanbyFire.org
I wonder if one can still get the cartridge adapters for the MSA full face masks. Although if we came to a medical call with a full face mask it would look like something out of “The Andromeda Strain.”
https://us.msasafety.com/c/G1-Facepiece-with-Twin-Cartridge-APR-Adapter/p/000010001800003004