F1 standard filter consisting of two filter layers, the outer particulate filter and the internal active carbon element. The outer layer of the F1 filter is capable of trapping particulates down to .1 micron in size. The inner layer is effective towards fumes and odors. 99.9% effective.

Extra Large Size, 3 filters per pack.

TWO FILTER LAYERS: OUTER PARTICULATE FILTER &
INTERNAL ACTIVE CARBON (AC) ELEMENT.
FOR LOW INTENSITY DUST/FUMES/SMOKE/ODORS