Chair-Air™ alternating air wheelchair cushion has four individual bladders that alternate to provide the patient a superior pressure redistribution seating surface while the unique molded design, with slight abductor pommel, stabilizes the hips and keeps the patient in proper mid-line alignment. The zippered non-skid, stretch-knit cover is anti-microbial and fire-retardant. The Chair-Air™ 9700CAF includes the Chair-Air™ 9701 alternating pump. The Chair-Air™ is utilized in the prevention and treatment of pressure ulcers.