How to Detect a Two Way Mirror

Category Personal
A little test can help you see what kind of mirror you are looking into. This is a page about how to detect a two way mirror.


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May 24, 2005

When we visit toilets, bathrooms, hotel rooms, changing rooms etc, how many of you know for sure that the seemingly ordinary mirror hanging on the wall is a real mirror, or actually a two-way mirror?

Just conduct this simple test: Place the tip of your fingernail against the reflective surface and if there is a GAP between your fingernail and the image of the nail, then it is a GENUINE mirror. However, if your fingernail directly touches the image of your nail, then BEWARE, for it is a two-way mirror!

By Marti M.

Editor's Note: Another way to detect whether a mirror is a two way mirror is to turn off the lights and put a flashlight up against the mirror. If there is a room behind the mirror, you will see it.

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May 25, 20050 found this helpful
Top Comment

The actual test is accurate. Snopes and about both confirm that. The reality is that a two-way mirror is going to be installed in some sort of window frame and with all the small camera techology, it's much cheaper to spy on people with a camera than an expensive two way mirror.


So look for small cameras if you are worried about peeping.

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January 10, 20060 found this helpful

after watching documentaries on tv about people who spy on other people even in public restrooms, I'm always cautious about it. Then again, I can't spend my life worrying about someone filming me. Zip up while in the stall and when you check your hair and make up in the mirror, give 'em a wink and a smile! I think where you would probably find the most peeping is in hotel/motel rooms. I've heard that many hotel/motels have been found to have mirrors and even peep holes where the guests were watched in thier most intimate moments. In today's techie world I don't think we can be sure who is watching us and when. Cameras are so tiny these days that you probably would never find it anyway.

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