Rugged Activated Carbon Filter for MAC Air Helmet Air Pumper 21300MR-O Flap on the skirt is

Flap on the skirt is sealed with Velcro to eliminate dust for flames from entering

Particulate pre-filter wrap

Utilizing the latest in ImpactMax-UL textile technology

This allows us to make a better-fitting helmet that is lighter weight

For use with the Adjustable

Rugged Activated Carbon Filter for MAC Air Helmet Air Pumper 21300MR-O Flap on the skirt isThe best filter for your helmet air pumper! Utilizing activated carbon, this specialized filter eliminates odors and pollutants, for a fresher helmet air pumper experience! The multi layer breathable media combined with a unique filtration technology results in a superior filtration system. Clamp on design secures the filter to the 3" MAC Air, MAC1, or MAC3. 2 Pumper intake. Compatibility: MAC Air, MAC1, and MAC3. 2 Pumper Systems only. CAUTION: Do