Pack includes; 1 x reusable triple layered cotton mask
3 x PM2.5 disposable filters.
Adjustable toggles to adjust fit of mask.
Prevents transmission of airborne particles up to 2.5 microns. PM2.5 disposable filters last up to 1 month with frequent use or up to 60 hours, whichever is sooner.
Inner pocket secures filter from loose movement.