The Chengde KN95, is made to the New GB2626-2019 Standard
They are packaged in a secure tamper proof heat sealed bag that is resealable after opened.
The improvement will be from the new melt blown polypropylene cotton filter layer which will upgrade the breathability factor (respiratory resistance) of the mask. This new enhancement will help make it easier to breathe for the user while still offering filter efficiency greater than 95%.
American Dental Association infographic on understanding mask types can be found here: ADA Understanding Mask Types
MATERIAL:
- 46% non-woven polypropelene, 28% melt-blown fabric, 26% ES hot air cotton.
- Ear loops: Latex free
- Nose piece: Adjustable metal
FEATURES:
- Construction: Multi-layer filtration system of non-woven soft and breathable fibers.
- 5 layers
CARE AND USE:
- Keep the face mask clean before use. Do not touch the rear side of the face mask.
- Do not wash the face mask with water. Water will destroy the filtering ability and protective nature of the mask.
- Do not steam the face mask or put it in the microwave.
- Keep the face mask away from vapor, oils, chemicals, paints, liquid, acid, and alkaline objects.
- Make sure to discard the face mask when it becomes visibly dirty or breathing resistance increases remarkably.
SPECIFICATIONS:
- KN95 mask is not intended for use as a surgical mask or to provide liquid barrier protection.