... /m2 calendaring pp nonwovenPacking:50pcs.box,20box/carton,40box/cartonFunction:3-ply structure,effectively prevent from bacterial and dust,two plastic strip ... fixed on nose while unfolded,with tie an nosepiece.Application: medical sanitation,lab,pharmacy,electronic industry,instrument making,gardening,particulary suitable ... requests is our commitment MB-0403 MB-0306 3ply-face mask(Blue) Our laboratory