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.
Electrostatic filter cotton ensures good air permeability and high-efficiency filtration.
Brand Name: 3M
Product Name: Particulate Respirator
Certification Standard: KN95
Breathing Valve: Yes
Quantity: 3 Pcs
Package Size: 18*15*3cm / 7.09*5.91*1.18in
Package Weight: 70g / 2.47oz
3 * Pieces of Particulate Respirator