5-Layer Masks: The KN95 mask is made of 2 layers of non-woven fabric, 2 layers of melt-blown fabric, and 1 layer of hot air cotton. Non-woven fabric is soft, non-irritant, non-toxic; melt-blown fabric features high efficiency in filtration; hot air cotton helps absorb the moisture from the breath. The filter efficiency is 95% ..50 Pack & Multicolor - Included 10 colors，Army green*5，Royal blue*5，Navy blue*5，Brown*5, Wine red*5, Purple*5，White*5，Black*5，Dark gray*5，Light gray*5. Colorful life, don't be defined by colors. Try different styles , you can choose them to match different clothes according to your hobby..3D Shape Design: The KN95 face masks are created in 3D shape, it is designed according to the human face shape to ensure the tightness, which effectively reduces air leakage while providing a smooth breathing. It covers mouth, nose and chin perfectly, a strong fit for most people's faces..Elastic Earloops & Adjustable Nose Clip: The face mask is equipped with high elastic straps, it is soft and durable, which effectively helps eliminate pressure to your ears. The mask is designed with a built-in nose clip, which allows you to squeeze it on the both sides of your nose bridge to make it fit your face well, so as to make the mask greatly avoids unfiltered air directly entering into..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.