3M 9542 Valve KN95 (Activated Carbon) (20 PCS)

Features:

• FDA Approved
• Activated carbon filter layer
• Adjustable nose-clip, soft inner shell, smooth and comfortable against face
• Spacious and durable
• Ideal for mechanically generated particles, nuisance level of organic vapors and agricultural type chemicals with low vapor pressure, spraying pesticide, herbicide and fungicide and Common flu / virus prevention
• Function: dust proof, anti-virus, anti-odor; breathing resistance is small, comfortable to wear; breathable, smooth breathing; 
• Filtration rate of not less than 98%