use gloves and prper prtection for use of this.
Our installer had this procduct on the list of things that you  can use for the finish of the walls and such.  It works with very litlle scrubbing. It brings back the shine too. I keep the fan over our tub to deal with it and more. and maybe if youre really concerned use a mask. It is a powerful cleaner. It does have a powerful order. Not stinky,  but chemical like. But to me, its welll worth it.
Rating: 4 stars