KN95 Disposable Half Face Dust Mask The KN95 is an industry standard for respiratory equipment which has the intended effectiveness of filtering 95% of particulates greater than. 3 microns. 4 Layers. Adult Size. These masks provide protection against harmful airborne matter based on the KN95 specifications. These are not meant as a replacement to the N95 masks; rather, an alternative to N95 respirators for civil and industrial use. KN95 masks are considered respiratory protective equipment that conform to EN 149:2001 A+1:2009 standards. They offer significant protection over standard surgical blue 3 ply masks and are acceptable replacements if N95 masks are unavailable*. Features 鈼廍fficient Filtration: Filtering at least 95% of particulates down to .3 Micron 鈼?-Layer Purification: Melt-blown Non-Wovens, moderate thickness for particle absorption, double layered electrostatic filter, and highly efficient at filtering particles 鈼廈reath with Ease: Advanced Nonwovens fabric provides easier breathing 鈼廍rgonomic Design: Comfortable to wear, low impedance filter material with no odor 鈼廠ecurely Sealed: Adjustable metal strip ensures optimal sealing between the bridge of the nose and mask 鈼廤earing Type: Ear-worn 鈼廎iltration Grade: KN95 鈼廋olor: White 鈼廡echnical Data: Effective protection against dust, haze and droplets, etc.China Medical Disposable Face Mask website:http://www.jufacemask.com/medical-disposable-face-mask/