Kimtech N95 Pouch Respirator is NIOSH-approved, providing a minimum 95 percent filtration efficiency of 0.3 micron particles (though not oil-resistant). It is designed to help guard against the risks posed by airborne particles & contaminants. Pouch-style respirator offers the wearer a large breathing chamber to maximize comfort. It comes with two comfort-fit headbands & a bendable nosepiece to customize fit & ensure a consistent seal. This respirator is not for the healthcare market & not for healthcare personnel. It passes all relevant NIOSH testing protocols (NIOSH approval protocols do not include specific tests for respiratory diseases).