A clever and stylish solution to resolve problems with privacy which arise with heavily glazed houses in an urban context, so-called smart glass changes from frosted to clear (and vice versa) via a control switch. Used as an alternative to blinds and curtains, it can work on windows, glass partitions, skylights and floors. This can be operated remotely from a distance of up to 75ft, a fixed switch installed on the wall or via a voice-activated control. For those who want to avoid going to the expense of having windows replaced, switchable film can also be retrofitted to existing windows, depending on the surface.