I've had this in a closet for about a week. It is very humid where we live. So far it has not made any noticeable difference and I've had to recharge twice this week alone.It is beasically the same as those crystals you get at the drug store for a couple of dollars, but it plugs in (awkwardly) instead of being put in an oven to dry.It may work well where it is not very humid, but then, what's the point?I also bought 2 other everdry units at the same time. The next one up is effectively the same as this but larger. The "petit" unit work like the larger ones, collecting water in a resevoir. It has made more difference in a few hours then this one did in a week.I'm considering another one of those, but would not buy this one again.Very disappointing.