Researchers at Fudan University have been hard at work finding ways to extend the lifetime of disposable surgical face masks, and now there's a method you can follow at home.

Face masks are a hot commodity at the moment, and even though Shanghai's factories are in full gear producing hundreds of thousands a day, any way of stretching the lives of our existing masks just a little bit longer is welcome.

The method they've found works the best requires just a standard hairdryer, some ordinary cling wrap and a bit of patience. Let me show you how!

Learn how to extend the life of your disposable surgical face masks by checking out Andy's latest vlog above.