Gary,

I would try to aim for 50-55% RH with a temperature of 60-70 degrees F
(16-21 degrees C).

This topic is discussed in Chapter 5, Archival and Curatorial Methods in
The Mollusks: A Guide to Their Study, Collection, and Preservation edited
by Sturm, Pearce, and Valdes.

I have a dehumidifier which has a sensor. It will turn on and off to
maintain the preselected RH.

> Hi All,
> My question is what is a safe humidity level for the shells
> before you start getting disease problems. ...Thanks.
> Gary


Regards,
Charlie
.................................................
Charlie Sturm
Research Associate - Section of Mollusks
Carnegie Museum of Natural History
Pittsburgh, PA, USA

Assistant Professor - Family Medicine
Fellow-American Academy of Family Practice
Fellow-Academy of Wilderness Medicine

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