<br>By Amazon</b> <br> <br> <br>Ues for Filter Masks Face, asbestos Mask, woodworking Dust Mask, air Filter Face Mask, construction Dust Mask, wood Working Mask</b> <br> <br>Specification:</b> <br>Material: activated carbon filter layer.:</b> <br>Function: Protection against sand and dust</b> <br>Design: Ergonomic to human faces, covering area below bridge of nose, with small holes for breathing</b>