Easy to Use: Safe for use on most non-porous, hard surfaces, walls, uPVC window frames, glass, plastic shower curtains, bathroom tiles, grout, silicone sealant, concrete, sinks and plugholes. Multi-purpose: It’s perfect as an all-round cleaning product. Not only will it destroy mould and mildew it can also be used to whiten grout. Prevents Mould: With regular use, this powerful formula helps prevent re-growth of mould, giving you a long-lasting cleaning solution. Tough on Mould: A hard working versatile cleaner for a deeper clean, vigorously blasts away stubborn mould with no scrubbing required. Hygienically Cleans: HomeGenie Mould and Mildew Remover is a powerful but non-toxic, bleach free treatment that kills various types of mould and mildew.