you're going to have to season it.
oh and that deal that's posted above, i got that one too hehe.
when i seasoned that humi that came with the deal, i just got a spray bottle, filled it with distilled water and sprayed the inside, just enough but not too much so that it starts to drip, i put in a digital hygrometer and left it alone for about 2days till it stayed at 70degrees. then i added some gars.