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Hi all --

Last October the Huntington opened a botanical education conservatory
with interactive stations.  We have microscopes, refractometers, and
kaleidoscopes, all of which we clean several times a day.  We have been
cleaning the oculars with ethanol, but are looking for a milder
alternative to extend the life of the lenses.  I have used samples of an
enzyme-based cleaner made by Purosol.  Does anyone have any experience
with this cleaner, or other suggestions?  

Thanks for your help
-- Kitty Connolly
Conservatory Project Manager
Huntington Botanical Gardens

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