Suction devices may be mechanical hand pumps or battery or electrically operated mechanisms. The plastic, rigid Yankauer suction tip is one type of tip attached to a suction unit. Another is the plastic, nonrigid French or whistle tip catheter.[3] A suction unit is a device for removing liquids or gases by suction it from the patient. Professionals use it to remove mucus, serum or blood from a body cavity. Suction machine is used also for Home Care. Suctioning could remove fluids or mucus from airways. The potential of this machine could be in need also when you have a moist cough, and you’re unable to effectively clear secretions from the throat, or are having difficulty breathing.