I checked the listserv archive, and it doesn't look like this has been
discussed for a few years, so....I'm curious about what the current
thinking is on small portable humidifier and dehumidifier units.

We have a display area that does not have its own climate control, and
the humidity tends to rise and fall dramatically, depending on what is
happening with the building's main air conditioning units.  

Although my preference would be for a console unit hooked into the
building's drainage and water supply, so that we don't have to
constantly refill and empty pans, I don't think it's going to be
possible.

I don't want to just buy a cheap home unit, however, because I keep
coming across cautionary tales about bacteria growing in the units,
about humidifiers depositing lime on collections, etc.

Are portable units acceptable when there are no other alternatives?  If
so, any recommendations for humifiers and dehumifiers (separate units or
combinations) that are good in a museum setting, do the job, do no harm,
and are relatively quiet?

Thanks for your insight,

Nancy Jenner

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