Hamilton Syringe Cleaner effectively cleans 7000 Series syringes by vaporizing residues with a combination of high heat (approximately 370°C) and vacuum (0.1 mm Hg). The syringe needle is inserted through the septum for 30 seconds while the plunger is reciprocated several times. This cleaner is not effective against syringes with plugged needles or frozen plungers. Care should be used when handling because of the extreme temperature generated.