Our 30-packs of disposable mask filters provide greater than 98% filtration efficiency for 0.1 micron particles. Used in conjunction with any NW Alpine mask, each filter is made of the same material used in N95 masks (electrostatic charged non-woven melt-blown polypropylene).
Made in the USA in our Factory with USA made meltblown material.
Save 25% now by choosing our monthly automated purchase option!
Please note these masks are not intended for use in medical situations and have not been approved by the FDA.
Final Sale: Sorry, we do not accept returns or exchanges on masks or filters.