What is a mirror demister and how does it work?

We all know the frustration of a mirror that is fogged up, well the reason for this is from hot steam in the bathroom coming in contact with the cold surface of the mirror.

A mirror demister is a self-adhesive film that is applied to the back of a mirror to prevent the mirror from fogging up when you have a hot bath or shower.

How does it work?

The heat-conducting film is attached to the back of the mirror and connected to a power source via a switch or connected to your light switch. When it is switched on it will gently heat the mirror. With this gentle heat from the mirror demister it means that the surface of the mirror is no longer cooler that the air in the room  so there is no condensation effect and you can enjoy the luxury of a hot shower and a fog free mirror!