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 boxes of 50