The printed surface is white and adhesive side is black, so if you look to the glass from inside where the one way vision is aplied, you will not notice an application. OWV application supplies visibility from inside and if checked from outside the advertisement is perfectly visible.
Applied to the standard surface, under highly bright lights, the quality of the visual may deter a little, but generally it offers 80-85% minimum visibility. Looking from inside also there will be a 15-20% visibility lost.
OWV is mostly applied over glass surfaces. You can easily use this application where glass is present.