This glass is used where there is the need for privacy or to use at its max the available natural light.

Commonly this effect is obtained by using a film of silver or aluminum and a protective coat applied to one side of the glass pane.

This is a simple addition, and is regularly used in offices, reception areas, security huts, and even in the home.

It is the surrounding lighting conditions that actually dictate whether the mirror effect will work and the strength of the mirror effect.
The side with the most light is the side that will see a mirror, whereas the other side will be able to see through.