Designed for patients who are unable to reposition themselves frequently or are at risk for skin breakdown and friction burns. Extra-quiet lightweight pump has a high capacity output. Includes an illuminated on/off switch, quick-replace air filter and hook for easy attachment to the bed. Cycle time is 5 min/60Hz, 6 min/50Hz. Pressure setting is fixed at 100mmhg. Bubble pad is made of 11-gauge textured PVC with a weight capacity of 300 lbs. Pad size: 34"w x 78"l x 2.5"h. Warranty: 1-yr on pump; 120 days on pad.