Contains hydrochloric acid. CORROSIVE. Causes severe skin burns and eye damage. Harmful if swallowed or in contact with skin. May cause respiratory irritation. Do not breathe mists. Do not get in eyes, on skin or on clothing. Wash thoroughly after handling. Wear protective gloves and eye protection. Do not eat, drink or smoke when using this product. Keep only in original container. Do not mix with chlorine bleach or other chemicals. Use only in a well-ventilated areas.