The Protekt Aire 9900 is the most effective means available of multi-zone pressure therapy, continuous true low air loss relief and pulsation all in one dynamic air system. State of the art micro-controller technology, monitors blower speed to set pressures. Software flexibility allows custom pressures, times, and functions. User-friendly control panel with dome keys, LED display for simple user interface. High air flow blower with 1000 liters per minute. Provides effective true low air loss with or without alternating pressure or pulsation. Audio/visual alarms in the event of power outage or low pressures. Internal memory always retains current settings during power outage, will resume desired operation upon power return. Lock out key completely locks the control panel, to eliminate tampering of the patient settings, including power switch. All of the components such as manifold, tubing assembly, air cushions, top sheet, and foam base are interchangeable, and can be easily cleaned or detached for laundry.