NIOSH N99 certified mask, Cup shape mask N99
Respirator Protection - This particulate respirator level N99, removes at least 99% of non-oil-based particles down to 0.3 microns.
Multi-function Assistant - This mask is used to protect your lung from particles environment, such as grinding, drilling and painting.
Comfortable Material - NIOSH N99 dust masks are made of high fiber, odorless, breathable.
Package - Pack of 20, disposable. Flexible head elastics and nose clip can be adjusted to fit face shape.