This BeaconMedaes Claw Vacuum System works with a frictionless and dry design that uses rotors that spin in opposite directions. These are synchronized with precision gears to create a sturdy vacuum system. The rotors will not get in tough with each other or with the housing. This makes it so you don't need sealing fluids or lubricants in the pumping chamber. This is easy to maintain and you can replace the gear lube and inlet filter each year without having to do too much beyond that. This is especially great for anesthesia functions. This is great for WAGD and oxygen controls and is amazingly easy to work with under all sorts of oxygen concentrations.