PM2.5 Filters (Packaged with 2pcs)
5-LAYER NON-WOVEN FILTRATION MATERIAL (WITH ACTIVE CARBON LAYER)
Perfect for use with our 2-Fly Fabric Face Masks
- 1x activated carbon
- 2x non-woven clothes
- 2x meltblown papers.
Size: 4.5" x 3.2"
Effective against particles 2.5µm (0.025mm) or larger.
It is recommended to change your filter twice a week if it is used daily.