Since the coronavirus pandemic was declared back in March, the benefit of wearing a face mask has been one of the most highly debated topics.
In England, face masks are currently compulsory on public transport as well as in several indoor settings, including shops, supermarkets and museums.
Face masks come in a range of forms, including surgical masks, cloth coverings and masks with valves. Now, the Centres for Disease Control and Prevention have urged people to avoid masks with valves.
It explained: “The purpose of masks is to keep respiratory droplets from reaching others to aid with source control. “However, masks with one-way valves or vents allow air to be exhaled through a hole in the material, which can result in expelled