10 filters pack for anti-pollution PM 2,5 mask

The removable filter fits inside the mask in a pocket provided for this purpose. Position it on the top of the mask facing the nose and mouth

It can be reused for up to 15 days depending on air pollution conditions before needing to be changed.

Filtration of particles down to 2.5 microns via 5 layers of filtration, one of which is activated carbon and the other microfibre to stop the finest particles

Please note that these filters are not compatible with Biker masks with valves or Frogmask