Should you open windows in winter? Air quality experts warn it's a vital winter maintenance task you should never skip

An old style wooden framed window, open, with a view of a cottage and a winter leafless tree. Brown hedges.

You'll be forgiven for thinking opening windows regularly is better reserved for when it's bright, warm and sunny outside. But did you know it is just as beneficial in winter, too?

Air quality experts say knowing how often you should open windows in winter can help solve several common winter household complaints, including mold and musty smells, as well as combating condensation build up.