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By certification 
50Pcs Disposable Face Mask, 3-ply, Thick Layers, Breathable, Dustproof - White Special Edition
Made of premium non-woven fabric, soft and breathable.
Protection: Three layers of purifying dust, toxic gases in the air,and skin-friendly filter cloth,giving you multiple protections,protects against dust, allergens and contaminants
The elastic earloop can eliminate pressure to the ears.
Cover your nose, mouth and chin for full protection.
Material: No-woven Fabric
Quantity: 50Pcs
Features: 3 Layers, Disposable, Breathable, Dustproof
Single Size: 17.5cm x 9.5cm/6.89" x 3.74" (Approx.)
The masks are designed to keep away smoke, debris, residue and dusts from you. Great value for Cleaner, Builder, Farmer, Doctor, Student, Nurse.
http://www.mask-trade.com/
