Face Mask Filter Material – White, 7″ Wide (By the Yard)
Face Mask Filter Material for mask construction. 7″ wide, sold by the yard.
“Spun bond” Inner & Outer Mask Layer – Washable – Polypropylene, 25 GSM.
“Melt Blown” – Center Mask Material – Non-Washable – Polypropylene, BFE 99.5%, 30 GSM.
“Spun Lace” Center Mask Material – Washable – Polyester, BFE 98.2%, 35 GSM.
BFE – Bacterial Filtration Efficiency