Airgas - MSA10084828 - MSA Large Ultra-Elite® FireHawk® Series Full Face Air Purifying Respirator
Recently acquired a second 3S mask. One by Auer, one by MSA. The Auer mask carries far less markings compared to the MSA, but Auer is mentioned on both masks. : r/gasmasks
MSA G1 Full Facepiece SCBA Respirator, Medium, 10161813