Mirror glass and venetian blinds are two different windows features. While mirror glass has a few options, which can range from part translucence to practically full reflective, the glass is permanent, but venetian blinds can be closed and opened at any time. It is also important to remember, that when inside and the lights are on at night time, people can see in from the outside, making the better option in this circumstance, blinds. The is also an additional option of glazing which could be used, called Privalite. This type of glazing can be changed from transparent to near opaque by means of a remote control.