Suction machine is a medical device designed to remove mucus, blood, saliva, and other bodily fluids from a patient's airway or surgical site using controlled negative pressure. It helps maintain a clear airway and supports safe patient care during emergencies, surgical procedures, and routine medical treatment. Depending on the model, it may feature an adjustable vacuum regulator, pressure gauge, collection jars, suction tubing, bacterial filters, and an electric pump. Portable models are also available for convenient use in different clinical settings.