Nanotechnology Antibacterial 4 Layer Filter for Facial Masks

Patented nanotechnology.
Four layers filtering for safer breathing protection.
The nano silver antibacterial filters are effectively improve the antibacterial efficiency of masks.
The nano silver particles in the filter offer strong antibacterial protection and bacteriostatic function, as they are not dissolve in water or body humidity but actually increase their effectiveness by producing silver ions through slow release for a long time.

The nanotechnology filter offers four layers of advanced filtering:
The first layer (surface layer) is 25-30g/m2 PP non-woven fabric,
The second layer is 25g/m2 melted spray fabric for filtration,
The third layer is 38g/m2 nano silver antibacterial non-woven fabric,
The fourth layer (inner layer) is 20g/m2 water-wet PP non-woven fabric

Dimensions: 8 x 10 cm.