KN95 with exhalation valve

Approved particulate respirator dust mask helps to protect against various particles. Designed for comfortable protection against non-toxic dust, pollen, mold, dander and common airborne irritants. Disposable mask is lightweight and humidity-resistant; filter media offers lower breathing resistance and is latex-free; soft, odorless and non-irritating. Adjustable nose bridge and single strap construction provide a secure, customized fit; one size fits most face If you have any other quality problem.