PM 2.5 Activated Carbon Replacement Filters 10 Pack

***Replacement filters only. FR1 Respirator Mask Available for Separate Purchase HERE Pack of 10x interchangeable Activated Carbon Filters to be used with the FR1 Respirator Mask. These filters are rated at PM2.5. The PM2.5 rating will block Particle Matter (PM) of up to 2.5 microns in size which includes smoke and smog and will also absorb viruses, bacteria and gases. With daily use, the filters are effective in filtering for up to a week. Returns and Exchanges: All sales are final and we will not accept returns or exchanges.