An assembly of devices designed to evacuate obstructive secretions, gas, liquids (e.g., blood, vomitus), and/or foreign bodies from the upper respiratory tract (i.e., the nasal cavities and oropharynx). It generally consists of mains electricity (AC-powered) suction pump, a pressure regulator and gauge, one or more collection canisters, plastic tubes connecting the components to each other, and an overflow protection and/or bacteria filter. The typical vacuum level is low; free flow rates may be as high as 30 L/min. The system is used mainly in physician offices and for emergency procedures.