I just tried this for the first time: Test subjects: DSE 901 atty - very cold, not working at all Janty Kissbox atty - foul tasting, reduced vapor production 801 atty - reduced vapor production Method: microwaved small amt of Hydrogen peroxide for 30 seconds, dropped attys in, battery side down, made sure tube was filled w/liquid. Agitated for 30 seconds, left sit for 5 minutes. Repeated cleaning process with straight white vinegar. Rinsed with hot distilled water, blew in battery end of atty to clear of all fluids. Will let dry overnight, and try repriming and testing tomorrow afternoon. Will report results then. Wish me luck!