Window films can offer privacy in three ways.
Plain clear glass can be made “one-way”, frosted or blocked out in a solid colour.
The success of one way glass is not only dependent on the solar film, but also the lighting environment it is applied in. It works by reducing the light level on one side of the glass as compared with the other. Therefore, to create the one way effect, your glass will need to be tinted to some degree. Remember, because it is lighting dependent, it only works during the daytime!