OVER 95% FILTRATION: Five-layer filtration system of the safety mask effectively prevent droplets, pollen, dust, and other harmful particles.3D-FIT DESIGN: Our 3D design with the metal nose clip provides a tight seal to ensure air flows through layers which give you superior protection and prevent glasses fogging. At the same time, all respirator mask with better seal can be uncomfortable over time.The KN95 face masks stays in place and have plenty of room around your mouth.MULTI-PURPOSE APPLICATIONS: Ideal for indoor&outdoor setting like school, office, air travel, healthcare, construction work and more.DISCLAIMER: This KN95 mask is NOT an N95 mask. For more information about KN95 masks please see the following before you purchase: amazon.com/AboutKN95s