Nu Eco Window & Glass Cleaner is safe, eco-friendly product. This natural formulation includes Spearmint which leaves a lovely fresh smell in your home. A clean product made without harsh chemical ingredients such as sulphates, surfactants, parabens, propylene glycol and synthetic colourants and fragrances. It is also vegan and water course and septic tanks friendly. The Window & Glass Cleaner is grey waters and septic tank safe.