Surgical pleated mask, regular, white, 50 pieces x 20 boxes, 57541, 1 case (50 pieces x 20 boxes)

This is a pleated mask with a four-layer filter structure produced in Japan. Medical masks comply with US standard ASTM-F2100-19 Level 2. High density filter for peace of mind. The 6mm rubber used means that the rubber does not dig into your ears and is less likely to cause pain even when worn for long periods of time. Bacterial filtration rate [BFE]: 99%, particulate filtration rate [PFE]: 99%, exhalation resistance: 1.8mmH2O/cm2), blood impermeability: 120mmHg, flame retardancy: Class 1 *Test results (average values) from Nelson Laboratories (USA) and Kaken (Japan). Material composition: Filter part/polyolefin, polyester, ear hook part/polyester, nose fit part/polyolefin Quantity: 1 case (50 sheets x 20 boxes) Mask color: White Mask dimensions: length 175 x width 90 mm Internal dimensions: 125 x 185 x 100 mm 221.5 g Exterior dimensions: 265 x 518 x 382 mm 5.3 kg