Depends on what hands are washed with. Semmelweis used what we call chlorine bleach, Lister carbolic acid (dangerous stuff). http://en.wikipedia.org/wiki/Ignac_

Depends on what hands are washed with. Semmelweis used what we call chlorine bleach, Lister carbolic acid (dangerous stuff). http://en.wikipedia.org/wiki/Ignac_Semmelweis http://en.wikipedia.org/wiki/Ignac_Semmelweis Semmelweis's strategy reduced childbed fever in his ward by 90%. (Then he got all pompous about it and was ignored ... unlike Lister.) Since busy people can't wash all the time, a device like the one in the article would make antisepsis a lot harder to resist.