A pair of Ray-Bans with a dark lens and a mirror tint only lets through 10% of the visible light and 0% of the UV. Another pair with more of a sepia lens also gets a UV reading of 0, but these let ...
Essentially, one-way privacy film, also referred to as mirror film ... privacy film is more effective with a darker tint, which allows less light inside. So, if you want to maximize privacy ...