We use oven cleaner to clean some really dirty, pitted and stained windows, and I know for a FACT that you do not want this stuff coming anywhere near your skin. We were required to wear respirators and rubber gloves, and for very good reason. This stuff feels like pepper spray on the lungs(if you breath in the mist) and it will "burn" off your top layers of skin. Even though we were supposed to wear the respirators, we often didn't. We even used it to kill bee's nests if we had no bee killer. NASTY stuff.