The Life Support Products Advantage Emergency Portable Suction Unit has the unique ability to operate at optimal performance from three locations both inside and outside a vehicle while transporting patients. This rugged unit is rated for continuous use and can operate from an AC wall outlet, an emergency vehicle docking station, or outside the vehicle from its own internal battery. The Advantage has the longest run time before recharging, operating at full suction for 75 minutes before the indicator lights signify the need to recharge, and it will run for approximately 60 minutes after being charged for just 2 hours. Even if the battery is dead, drained or damaged, the unit will operate at full suction from a wall outlet or from the vehicle docking station.