Abstract: A new and improved bathtub chair includes a fluid operated chair assembly. A fluid pressure generating assembly, such as an air pump, generates fluid pressure for operating the fluid operated chair assembly. A fluid pressure valve assembly, connected between the fluid operated chair assembly and the fluid pressure generating assembly, controls fluid pressure applied to the fluid operated chair assembly. The fluid operated chair assembly includes a seat member. A plurality of extensible legs support the seat member. A fluid pressure responsive lifting assembly, such as a bellows, located under the seat member, raises and lowers the seat member. The bellows is powered by air pressure from the air pump through the fluid pressure valve assembly. The bellows is supported by bellows support members connected to the extensible legs of the chair assembly. The fluid operated chair assembly includes a rotation assembly which permits rotation of the seat member with respect to a bathtub.