Non-Medical Bacterial Filtration Efficiency (BFE) > 95% Objects to be blocked: bacteria, dust, droplets, etc Material: – 3 fabric layers for filtration: Layer 1: Polypropylene spunbound non-woven Layer 2: Melt spray non-woven Layer 3: Polypropylene spunbound non-woven Ear loop band made of non-woven ultrasonic compound Intended for single use only Sold in packs of 50
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