Moisture Trap 5 "It works - recommended" Marion 16 October 2014 Bought one for my son's bedroom as his window is always dripping with water and having to constantly wipe the window sill. Was thinking of buying a dehumidifier but hired one first. Thank goodness as it didn't make a difference, in fact made it worse. Bought the Moisture Trap as thought I had nothing to lose, wasn't that expensive. It has been brilliant. As others say, took a week or two to start working but been great ever since. Getting another one for bathroom.