Demister Pads

These are electrically powered pads that stick to the back of mirrors which heat up the glass and stops any steam forming (from hot shower and baths). They come in various sizes and usually need to be smaller that the mirror itself to leave room for the mirror fixings or adhesive to attach to the wall.

 

Normally these are used on bespoke cut mirrors but can be applied to any mirror where the rear of the glass is accessible. They usually are wired in to come on when the room lights are turned on in your mirrored bathroom.