REPLACEABLE ACTIVATED CARBON FILTER: helps you breathe in a cleaner way. Activated Carbon isolates 95% of the dust, pollen, etc. You just need to change the filter instead of the entire mask.
TWO VALVES Architecture act as an air blocker that helps to achieve high altitude and low air concentration results. It would increase the success of the pulmonary capacity preparation to some degree.
Excellent in windproof and dustproof efficiency, usually perfect for buyers who like cycling, biking, or other outdoor activities.
Fit: Fits true to size, take your normal size
Pattern Type: Solid