Niosh Respirator Filter Inserts Flame Resistant L fits women's size 11/12

L fits women's size 11/12 and men's size 10/11

double-hole

Cool air is pulled in through bottom vents and warmed – warm air rises naturally to circulate through footwear

Button down

seamless and 100% waterproof

Niosh Respirator Filter Inserts Flame Resistant L fits women's size 11/12North offers an extensive line of gas and vapor cartridges and particulate filters to satisfy numerous industrial applications All North cartridges and filters are NIOSH approved with North air purifying half masks and full face piece respirators One line of cartridges and filters will simplify your inventory Air purifying respirators with cartridges provide respiratory protection against gases and vapors by using sorbents to purify the inhaled air