3M Cool Flow valve effectively reduces expiratory resistance, heat and moisture accumulation to improve comfort.
Perfect for non-oily particulate matter, such as PM2.5, pollen, dust. The filtration efficiency is more than 95%.
3D cutting, perfectly fit your face. Soft inner material, comfortable to wear.
Adjustable nose clip and two elastic fastening straps create a secure seal for maximum protection.
25 pcs individual packing, clean and sanitary, easy to use and share.
Brand Name: 3M
Product Name: Particulate Respirator
Certification Standard: KN95
Breathing Valve: Yes
Quantity: 25 Pcs
Package Size: 13*15*28cm / 5.12*5.91*11.02in
Package Weight: 600g / 21.16oz
25 * Pieces of Particulate Respirator