>> In the summertime [the humidity in our laboratory] is at around
>> 60-70%, which seems to work well. In the winter time it is less
>> than 0 and I run a humidifier full out to try to achieve 20%.<<
If your relative humidity is less than zero, you're probably putting
too much thiotimoline in your water bath!
(If you're too young for this literary allusion, see
) and make the acquaintance of the late great Isaac Asimov!
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