Working Principle: Plunder contacts medium directly. With reciprocation of the plunger,volume of working chamwer is changed cyclically, so as to such in and discharge the medium. Features: ? Adopt patented stuffing with superior sealing performance and lo
N95 folded face mask metal nose clip and elastic ear loops allow for secure and comfort fit. These masks should be disposed of after every use. Effective 8-hour protection. Please dispose responsibly.