Wearing a face mask in public is now considered to be a good preventative measure against coronavirus, which means it’s important for us to have one when we venture out.The main function of wearing a face mask is to stop the spread of Covid-19.The Scottish Government’s advice is to wear one when you’re out in public, especially in supermarkets while doing an essential food shop.The mask will help prevent you infecting someone else - a real concern as people are able to pass on the disease for as long as a week before symptoms present themselves.It will also offer some protection against catching the disease yourself.Money-saving website, Wowcher, has just launched a dedicated face mask page where you can find a variety of reusable fabric