From the Industrial to the Medical Evolution of the N95 industrial use 3m n95 medical mask inquiry in
Mar 26, 2020 · The first masks were efficient, but not so easy to use or wear. Scientists at 3M went back to the drawing board to develop something a little more user-friendly, and, on May 25, 1972, the modern N95 respirator mask was approved. The single-use masks used a melted polymer that was air blasted into layers of very small fibers.
Contact Supplier