air chair

noun3

1. •
   A blow-up vinyl or fabric-covered chair (such as an inflatable lounger or beanless bag chair), with lightweight, portable seats that often double as pull-out beds.
2. •
   A piece of equipment that allows one to "fly" above the water; it consists of a seat and a pair of skis mounted on a metal strut with a hydrofoil (underwater wing).
3. •
   A specialized adjustable chair used for patients who require significant pressure relief, postural support, and mobility assistance.