Two Layered Cotton Mask with Filter Slot by Frog & CO

Order more and save! Order 7 masks, save $40 Order 20 masks, save $100 *Additional filtration: Filter not included. We offer FILTER INSERTS HERE. Coffee filters or vacuum bags made of HEPA polypropylene (not fiberglass) are good DIY filters. You can also wear without any additional filtration. Features: Reusable &amp