[N95 Equivalent] 3M Dust Mask 8805-DS2, 10 Masks/box, National Certification Approved

This is a cup-shaped disposable mask with an exhalation valve for easy breathing.

The curtain-type exhalation valve expels heat and moisture from exhaled breath.

The nose clip reduces leakage around the nose.

Suitable for welding fume work, grinding, cutting, and dust work.

Particle collection efficiency (%): 95% or higher Maximum usable time: 11 hours National certification DS2 approved (No. TM 438) Average measured values: Particle collection efficiency: 98.0%, Inhalation resistance: 32 Pa, Exhalation resistance: 29 Pa Equipped with a curtain-type exhalation valve uniquely developed by 3M, it allows for easy breathing, and furthermore, heat and moisture inside the mask are expelled to the outside through the exhalation valve, making it less stuffy and more comfortable.