Med-Aire Alternating Pressure Pump and Pad SystemThe Med Aire Alternating Pressure Pump and Pad System is a great mattress overlay for pressure ulcer management and therapeutic patient treatment. Made of durable vinyl material, the Med Aire mattress pad offers 4LPM of variable airflow alternating between cells throughout for maximum comfort and efficiency and comes with a pump bracket for easy bedside mounting. Med Aire Alternating Pressure Pump and Pad System Features: 130 bubble air cells Durable,