Breathable and Light ; High Elastic Ear Loop Help Fit Different Users ;At Least 95% Filtration Efficiency.Activated Corbon Filter: Provides effective relief from nuisance levels of organic vapors. Exhalation Valve : Increased comfort -Reduces heat and moisture buildup..Chin Fold Desigen Provides Improved Comfort. Soft cover web on inner pannel feels comfortable against skin..Help to protect you from dust and weather,dust, pollen and smoke, allowing you to breathe normally..CE Certified and KN95 is equivalent to N95 Mask