The Unibond Aero 360° Pure Moisture Absorber System + 1 Refill is perfect for absorbing moisture and neutralising odours from the air. This device helps prevent condensation, damp, allergens, mould and mildew. It is noise free and works by a natural process which does not require any energy source. The moisture absorber system uses an Aero 360° Pure Tab which converts excess moisture into a liquid, which is then stored in the tank. The tab lasts up to three months and can be replaced. This device can be used in a room up to 20 metres squared in size.