Home Armor Outdoor Cleaner. This outdoor cleaner removes mold, mildew, dirt, grime, and algae stains with its effective formula. For outdoor use only, it is ideal for cleaning brick, wood, concrete and vinyl. Thoroughly rinse off surface and surrounding area. Do not use on cedar or redwood that is less than 2 years old and avoid contact with metal surfaces, clothing, carpet, fabrics, floor coverings or vegetation. Product will not remove pigmented wood stains or sealers. Oxidation from sun and elements can cause permanent discoloration on outside surfaces. Test on an inconspicuous area before using. Keep away from children and follow all directions carefully.