This package comes with 3 x Replacement Carbon Filters to insert into your Ankara Face Mask. The filter has five layers of of protection;
1st layer - Extra dust Filtering.
2nd layer - Prevents mist and haze.
3rd layer - Filters car exhaust and secondhand smoke.
4th layer - Filter density and smaller substances.
5th layer - Filters the omission of various pests.
Filters are NOT cleanable, replace when the carbon filter becomes sticky or oily with dirt.
