No no, that's not right. The moisture comes in with the air, not from the water we use. Unless the gaskets are completely shot, and the unit will be standing in water, it's just not going to happen.
Remember that even desert air contains moisture, you can create a sand pit, with a platic cover, and still collect water because it condensates on the plastic. Long story, and it's too late.
Even when I was trad the windows were misty, it's just the way it goes, it has got nothing to do with wfp. It may cause the moisture to condensate, hence making it look temporarily a bit worse, but the moisture was already in there.