The public have been advised to opt for non-medical grade masks, saving the important PPE for key workers who really need it.
However, the experts have now said that face coverings can help to protect from the virus, by preventing those without symptoms from spreading the disease.
From Monday it will be compulsory to wear a mask on public transport, while experts have suggested wearing them in public indoor spaces wherever it is not possible to maintain social distancing.
This could include trips to the supermarket, despite the new rules that have been put in place for staff and customers, as it can be hard to stay two metres away in the aisles.
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The product description is careful to note that they are not designed for those working on the front line.
It said: “This is a general use face covering. It’s not a medical device or personal protective equipment. It is not intended for use in healthcare settings.”
Instead, it says the masks are for those “looking for that extra peace of mind during unprecedented times”.
However, shoppers will have to head to their local Aldi to pick up the masks as they have already sold out online.
The supermarket face masks provide a cheap option for those who have not yet stocked up on cloth-based coverings to use when they are out and about.
Many designs have popped up online with tutorials to explain how to make your own mask, with even the government issuing its own guidance.
The government also explains how to use them safely, as they can harbour germs which you don’t want to transfer to your hands and other surfaces.
“A cloth face covering should cover your mouth and nose while allowing you to breathe comfortably. It can be as simple as a scarf or bandana that ties behind the head,” reads the government website.
“Wash your hands or use hand sanitiser before putting it on and after taking it off. Avoid touching your eyes, nose, or mouth at all times and store used face coverings in a plastic bag until you have an opportunity to wash them.”