Product review (2 stars): Not what I expected
I remember my mother using one of these.  I never noticed her walls filling with water vapor.  My dryer is in the basement and really don't want everything I own to wind up with mold on it.  The window in my basement is rigged in a fashion where if I try to attach a dryer vent it shifts the whole make shift window and I basically wind up with a gap & no protection.  I didn't want to mess around with it but I think I'm going to have to buy a new window that will properly accomodate a dryer vent.  I think I actually noticed LESS water vapor when I simply used a panty hose footie on the end of the dryer vent.  I was shocked beyond belief when I saw the water running down the cement wall & onto the floor.  Perhaps I had the device too close to the wall?  Either way I can't continue to put that much water vapor inside of my house.  I don't know if other people had this problem or just me?