Those boxes which absorb moisture, not a dehumidifier but it a plastic box and it has a special material inside they also suggest if you have a tumble drier and no outside vent to just attach one of these boxes.
Does anyone know what they are called and is there anywhere on the highstreet that may sell them/
thanks doc just been looking at one like this but when you recharge them surely it just heats the water and expells it via steam/moisture out the unit, Well we have bad damp everywhere so no place would be best to plug in so we might best go with the stand alone crystal ones. and then I can physically pour the water away.