The climate in the UK is highly variable, and these temperature extremes cause many homes to experience high condensation levels, especially during autumn and winter. Moisture levels within the home also increase when we shower or dry our washing indoors as a result of this, damp, mould and mildew build up to worrying levels. This is where a dehumidifier is an ideal solution. They work by pulling air in and running it past a cooling coil, which in turn removes moisture from the air by reducing the temperature.

https://www.dimplex.co.uk/dehumidifers