3M™ 8511 N95 Cool Flow™ NIOSH-Approved Face Masks. 2 Boxes of 10 masks per box, 20 masks total. Retail $59.98

Model 8511. Retails for $59.98 for both boxes, $29.99 per box.  2 boxes with 10 masks in each.  20 Masks total. Brand new.  3M N95 Particulate Respirators. 

3M™ 8511 N95 Cool Flow™ NIOSH-Approved Particular Respirator

3M™ Particulate Respirator 8511, N95 is ideally suited for work settings that involve heat humidity or long periods of wear. The Cool Flow™ exhalation valve offers easy exhalation. M-Noseclip adjusts easily for a custom fit and secure seal. Braided headband provides additional comfort and durability. Features a face seal for comfort and fit. Meets NIOSH 42 CFR 84 N95. Appropriate for use in oil and non-oil containing environments.