*These filters are not meant for medical use. PM 2.5 filters should be used for personal face coverings only.
PM 2.5 filters block particulate matter of 2.5 micrometers. Can be used for up to 7 days before needing to replace the filter.
*These are fashion masks intended for personal use, not approved for healthcare. Masks are not eligible for returns or exchanges, mask sales are FINAL.