An instrument for the evacuation of the fluid contents of tumors or collections of blood
An apparatus for passing air or gases through or over certain liquids or solids, or for exhausting a closed vessel, by means of suction
A device attached to a meteorological instrument to provide ventilation; usually a suction fan
A device for aeration and water flow creation The device consists of a float(s), a motor, a hollow shaft and a propeller The hollow tube is open to the air at one end and submerged at the other The angle which the tube is mounted at is adjustable A motor turns the propeller and creates a directed current of water The alignment of the end of the shaft and the propeller are such that air is drawn down the shaft and mixed in with the propelled water See aeration for comparison of efficiency with other devices
Part of Pressure-Lite toilet flush control components, along with backflow preventer, pressure regulator, and outlet manifold These components work with the incoming pressurized supply line water to provide a regulated pressure flush to the toilet bowl