Circulating some air around the bathroom is the best way to dry it out and to prevent condensation and mold from forming. This is particularly important after a hot shower or bath. Likewise to help reduce the amount of water vapor in your bathroom you can use a dehumidifier or an extractor fan in the room which will work to manually remove water. Another tip to prevent too much condensation is to never run a bath of hot water. Firstly – don’t run the bath until you intend to use it, and secondly run the cold water first so that you don’t have a pool of hot water steaming on its own while you wait for the cold to fill. This will again prevent steam in your bathroom renovation. The real area of danger is of course condensation on your walls and your ceiling and this is what you want to remove – it doesn’t matter too much about condensation in the air. Thus you should also make it a habit to wipe down all surfaces with a dry cloth after having your bath in order to prevent the moisture from sitting there.