Stop opening windows to banish mould — dehumidifiers may work better.

Cold weather and snow warnings in the UK increase window condensation, and experts say dehumidifiers control indoor moisture more effectively than opening windows.

The UK is facing colder weather with snow, frost and ice forecast in early January. The Met Office has issued amber and yellow warnings for snow and ice across parts of the country. Cold temperatures often lead to condensation on windows in homes. That condensation can leave moisture on surfaces and contribute to mould growth if it persists. Key facts: - The Met Office reported four amber warnings for snow from 6pm on Sunday until 10am on Monday across parts of northern Scotland, and multiple yellow warnings for snow and ice covering other areas until Tuesday. - Cold window surfaces cause warm, moist indoor air to condense into water droplets on glass. - Standing moisture from condensation can contribute to mould and mildew forming on window frames and nearby surfaces. - The article cites experts who say using a dehumidifier is a more effective and efficient way to control indoor moisture and help combat mould than relying on opening windows. Summary: Colder conditions and active weather warnings increase the likelihood of condensation and related mould risk in homes. Weather warnings extend into the early week, and ongoing temperature and humidity levels will affect how long that risk continues.