Agreed, CarinaPDX. I do not use the fan/wick/cool units - you must clean them weekly with bleach and use anti-bacterial anti-mold additives. The wicks are expensive and nothing more than spore dispersal units.
I use old-fashioned Vicks-style steam units - cheap
and self-sanitizing. Once a month I chip out the mineral deposits or trash them.
I am running 4 Vicks units in the house as I type this - wicked stahm blowin' outside.
I wouldn't use them in a boat
though. dripping windows and dripping ceilings in a boat
caused by lack of insulation
, not excessive Relative Humidity.