Uses: cleans tough mildew stains easily and conveniently while the gel formula helps to reduce bleach fumes, making it more pleasant to use. Great for use on grout, tile (glazed and unglazed ceramic), tubs, showers, shower doors, vinyl curtains, basins, sinks, fiberglass, plastics and vinyl. Avoid prolonged contact with metal or old porcelain. Do not use on wood, painted surfaces, marble, or aluminum. Avoid contact with clothes, fabrics, carpets or paper surfaces to prevent potential discoloration. For all other surfaces, before using this product perform a spot test in an inconspicuous area. Directions for use - important: read entire label prior to use. If possible, open a window or turn on a fan. For sensitive skin or prolonged use, wear rubber gloves. Wash hands after use. Shake well before using. Turn nozzle to position. Spray 6-8 inches from surface until thoroughly covered. Allow gel to penetrate mildew stains. Wipe with a wet cloth or sponge, rinse thoroughly with water. Storage/disposal: store in a cool place. Rinse bottle and discard. Refill only with this product.