Allied - Gomco OptiVac G180 Portable Suction Machine/Aspirator has a compact design for easy transport. This suction unit can be operated on AC power or run off of an internal rechargeable battery. Battery has a 3 hour operating time at full charge. Generates up to 550mmHg of suction at 30+ lpm. This portable suction machine weighs 11.4 lbs, making it easy to transport and use anywhere respiratory therapy is needed.