Replaceable Carbon Filters for Sports Mask
The replacement N95 filters have 5 protective layers, and can filter 95% percent of contaminants, dust, and other airborne particles.
Non-woven layer: Non-woven fabric makes the sports veil comfortable and breathable, and not easy to get dirty.
Melt-blown layer: Layer filters harmful substances smaller than 0.3 micron.
Activated carbon layer: Absorbs chemical pollution in the air, like smog, toxic gas.