This blower based ""True"" low air loss system is our most advanced low air loss system. It provides exceptional protection against pressure, shearing, friction and moisture. Recommended for patients with any stage pressure ulcer, myocutaneous skin flaps and skin grafts.-""True"" low air loss system circulates air through 16 individual cells.The air is distributed equally across the top mattress surface wicking moisture away from the patient-User friendly digital power unit provides rapid inflation and easy set up-Integrated side bolsters keep patients centered in the bed reducing the risk of entrapment-Features ""firm"" mode for dressing changes and repositioning, and ""upright"" mode for added support when the head of the bed is elevated-Foot pillow prevents unnecessary skin breakdown due to patient migration-400lb. capacityOur Most Advanced Low Air Loss SystemMedline'S Med-Tech Air ""True"" Low Air Loss Mattress Has A Blower Based System. This Mattress And Pump System Is Light Weight Portable And Wishper Quite. It Is Microprocessor Controlled." Case Pack 1