The Invacare microAIR MA500 Alternating Pressure Low Air Loss Mattress System provides 3-in-1 Alternating Pressure System with Low Air Loss to aid in the Prevention and Treatment of Pressure Injuries. Advanced 3-in-1 alternating function inflates and deflates cells in a 3:1 cycle, providing active pressure relief by supporting 2/3 of the body at any given time HeelSense™ Technology can help provide further therapy and comfort by decreasing pressure in the vulnerable heel area Max Inflate Mode is designed to provide quick maximum inflation within seconds to aid with transfers and nursing procedures Cell in cell design helps prevent bottoming out in the event of a power failure Soft nylon urethane backed cells are designed to provide easy cleaning and help minimize the proliferation of bacterial growth Dimensions: 36"W x 80"L x 8"H Therapy Type: Alternating Pressure, Low Air Loss Product Weight Capacity: 500 lbs.