... a self-regulating way; 2,Fights odor, dampness, mould and stale odours clean and safe all year around. Charcoal Moisture Absorber Natural ... walls, windows, etc. caused by temperature differences or water penetration. No more smelly mould, mildew (in the form of black spots), metal ... moisture absorber natural safe is from natural,it is very clean and safe. The bag is made by excellent charcoal which ...