Amazon.com: 3M 1870 Surgical Mask N95 3M 1870 Surgical Mask N95 Box of 20: Health & Personal Care
The hospital I work at has us do regular fit testing for N95 masks, and I found that the model 1860 does not fit my face in a way that protects me from airborne particulates, while the 1870 does as long as I'm clean shaven. If my beard has grown out then ...