I have used effedent and Iso Alcholo the highest proof u can get usualy 90%; shaken the crap out out of it and it works well however, if you get a cyringe and just shoot the Iso Alcohol down the steam it cleans it out quick and nice. just get ready for som blow back and if its cloged mabey you should soak for a couple hours and shake every half hour or so then use the cyringe.