Special features :
Non-woven material with air permeability 99% BFE at 3 micron, breathing resistance < 2.5mm H2O 3-ply pleated design, adjustable noseband Unique surface water resistant with soft lining Suitable for OR, ER, patient care areas, oral, dental procedures, clinics, isolation, IC practices, pharmacy, patient and other applications. Packed : 50 pcs/box, 20 boxes/carton, 750 cartons/20' container