(UK also floatation chamber/compartment/tank)（放松身体用的）浮室／舱／罐
a container filled with water in which people float in order to relax
She'd just had a session in a flotation tank.
Flotation tanks, for me, represent the ultimate in relaxation.
I think I'd find a flotation chamber claustrophobic.
Were you tempted to try the flotation tank?
Why don't you treat yourself to a session in a flotation chamber?
See also: flotation (FLOAT)