What is the phobia for breathing in same air you just exhaled?

The phobia for breathing in the same air you just exhaled is called "autodysomophobia" or "same-air syndrome." It is a specific phobia characterized by an excessive and irrational fear of breathing in the air that you have just exhaled. People with autodysomophobia may experience anxiety or panic attacks when they feel like they are breathing in their own exhaled air, and they may go to great lengths to avoid situations where this might occur. For example, they might avoid closed spaces or wear a face mask in public. Autodysomophobia is a rare phobia, but it can cause significant distress and disruption to daily life for those who experience it. Treatment for autodysomophobia typically involves cognitive-behavioral therapy and exposure therapy to help reduce fear and anxiety.