In modern life, we often use fitting rooms in hotels, shopping malls, or clothing stores. However, few people realize that behind what seems like an ordinary mirror could hide a threat to your privacy — a two-way mirror. So how can you recognize it and protect yourself?
1. The difference between a real mirror and a two-way mirror
Real mirror: When you place your finger on the mirror, there will be a small gap between your fingertip and its reflection. This gap is caused by the protective glass layer.
Two-way mirror: If your fingertip touches directly with the reflection (no gap), it may be a two-way mirror. This type has a special reflective coating that allows light to pass through from one side, meaning someone on the other side could see you without your knowledge.
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