OFF! Deep Woods 6 oz. Insect Repellent Aerosol Spray provides protection against disease-carrying ticks, mosquitoes, black flies, sand flies, chiggers, fleas and other insects. One application repels for up to 6 hours. The non-greasy formula won't stain your clothing and resists perspiration. It is 25% DEET to offer effective protection from biting insects, especially in heavily wooded areas.