# BlackFriYay! # In addition to kitchen products, I also purchased bathroom power cleaning products. It can be used to remove scale, soap scum, mildew, etc. from bathtubs, wash basins, and bathroom walls. It is very simple.to use. Turn the nozzle to the out state. Spray it where needed, wait 3-5 minutes, then rinse off with water. It should be noted that when using, you need to wear gloves, masks, and glasses. Also keep the ventilation, the smell is a bit big. Personally, I find the results amazing, sometimes removing not only stains, but also strips of cement from tile joints. So be sure to pay attention to the waiting time.