Also known as "chemical sponges", these natural rubber soot sponges are designed to remove soot from fires in a dry state. The tiny porous cells of the sponge lift soot from surfaces quickly without smearing. These soot removal sponges are Ideal for painted surfaces, wall paper, acoustical tile, paneling, lamp shades, paintings, and other surfaces. These individually wrapped soot sponges may be reused many times by washing.