Earloop Masks - LAVENDER 50/Bx. Fluid Resistant Outer Layer, White Tissue Inner Layer. BFE >98.4% at 3 micron, PFE = 98.5% at 0.1 micron. Latex-Free, Extra-Long Aluminum Nose Piece, Aluminum Strip Under the Chin to create a custom fit with a tight seal at the bottom and sides of the mask. Conforms to any size or shape face. ASTM Level 1. Box of 50 masks