With almost 90% humidity at times, a closed up home can grow mould fast. In a tropical climate like in Darwin it is essential having good air circulation throughout the whole house or building. For mould prevention open the doors during the day and keep a fan going in the room. If the room does not have air conditioning, open the windows to let in a breeze. A major problem with mould is, once you get it, it's hard to get rid of it again and a major clean will become an important activity. We at Darwin Cleaning Services can help you.