From:Compression Medical.

Six individual bladders alternate to provide the patient a superior pressure redistribution seating surface. The zippered non-skid, stretch-knit cover is anti-microbial and fire-retardant. The Chair-Air™ 9700C includes the Chair-Air™ 9701 alternating pump.

System Features include:

• Blue Chip Chair Air Alternating Air Wheelchair Cushion and Pump System includes:
  - Wheelchair cushion
  - Alternating pump
• Pump comes with a rechargeable battery backup which keeps this system working up to 6 hours per charge, based on the patients weight.
• Zippered non-skid, stretch-knit cover is anti-microbial and fire-retardant
• The portable Chair-Air™ AC/DC Pump allows your patient to be totally mobile. A rechargeable battery backup keeps this system working up to 6 hours per charge, based on the patient’s weight.