Switchable film/Smart glass application

What is Mirror demisting film

What is 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.