*50-Pieces* 3M VFlex Particulate Respirator N95 Protective Face Mask 9105 Features:3M VFlex Particulate Respirator Face Mask.95% Filtration Efficiency.NIOSH N95 Approved. Package Includes:You Get 1 Box With 2 Packs Per Box, 25 Masks Per Pack For a Total of 50 Masks. 3M Model#:9105 Returns are accepted within 30 days of delivery. All returned items must be exactly in original condition.