About the Filter

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Layer 1 - 100% Cotton with a HeiQ V-Block Coating
Layer One faces out toward the world as your first line of defense to incoming particles. It is treated with HeiQ V-Block an innovative Swiss antimicrobial Company which makes treated textiles resistant against the degradation by microorganisms and inhibits the growth of bacterial odors.

 

Activated Carbon
Layer 2 - Activated Carbon
Scough uses military grade activated carbon
Layer 3 - Non-Woven Polypropylene
Non-Woven Polypropylene is a non-woven material making it have a random arrangement of fibers. This randomness helps to enable high particle filtration but still remains breathable.
Layer 4 - Meltblown Mesh

Melt blowing is a fabrication method of microfibers