Kontrol Mini Moisture Trap - Scent Free Absorbing over 100ml of moisture and lasting for 6-8 weeks the Kontrol mini moisture traps are ideal for caravans, boats, utility rooms, kitchens, bathrooms, wardrobes and cupboards. It has a spill proof design and is easy to use - place on a level surface, remove foil to activate unit. Designed to freshen air and absorb moisture, it prevents damp, condensation and musty odours in small spaces.