The product needs to be advertise better. Explanation on there is no metal band on the nose bridge, that the face shield may fit your face. Also does not have metal on the face shield banding area to mold it to each individuals face properly. Also include may not fit: long faces, oblong faces, heart shaped faces, square faces, or triangle faces do to the particular cut and style of the mask. The valve on the cheek won’t work because it has the 2.5 PM filters takeoff the filters and the valve forSee full review