Filter for 6000 6200, 6800, 6502, 6503, 7502,7503 Series Respirator2pcs 2091 need to install on the respirator using. The respirator with 2091 can be used in many works, for example:epoxy resin work, cleaning work, asbestos work, lead paint work, Woodworking, Grinding Work, Painting work filter is made of high electrostatic filter material, activated carbon layer, non-woven fabric, Meltblown fabric, hot air cotton.as at least a 95% filtration efficiency, Recommended for use in environments containing certain non oil-based particles.When to Change the Filter Cotton?The filter cotton is usually replaced in about 8 hours. You can extend or shorten the service life according to the work environment. Or when you are uncomfortable and difficult to breath, please replace the filter immediately.Note: the filter cotton can not be washed.Colour:As shownMaterial:activated carbonPackage Contents:6 x p100 filterOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.