Sensory deprivation tank

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An enclosed, lightless, soundproof tank filled with salt water for floating, used for relaxation and meditation, also known as an isolation tank.

Appearance

Mentioned once in An Affair To Forget.

An Affair To Forget

Season 2 · Episode 21 · S02E21

“For weeks, all Maris did for excitement was float in her sensory deprivation tank.”
— Niles

From the same episode and category.

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