Sonofjim: I purchased a lead detection kit from The Home Depot to test power chords. The results may not be the same as yours, I now wash my hands after fiddeling with them. You should try the test yourself. Nothing to go crazy about but an eye opener.
FYI: Several years ago, I did a search of the hospitals in my area for # of persons harmed by handheld steam cleaners , there were none. I now use a instant steam unit & not a traditional water boiler, pressure in a non-issue. Cheers