Plasdent’s Ultraproof™ Earloop Masks, designed to meet ASTM F2100-7 Level 3 standards, come in a box of 40. These masks offer dual-layer fluid resistance for superior protection. They feature a high bacterial filtration efficiency (BFE%) of ≥99%, excellent breathability (Delta p) <5.0, and a particulate filtration efficiency (PFE%) of ≥99%. With a synthetic blood penetration resistance of 160 mmHg, these masks, labeled MK3 under the ULTRAPROOF™ brand, are available in a universal size and various colors.