People wearing plastic face shields or masks fitted with a valve can spray invisible droplets over a very wide area when they sneeze or cough, making the devices ineffective at preventing the spread ...

Valve masks are a type of N95 mask with a one-way valve. The novel coronavirus pandemic brought society a new definition of normal which now includes wearing face masks. While the benefits of masks ...

Mask valves might make you breathe a little easier, but when it comes to fighting COVID, wearing one is a bad move. (Unsplash/) When shopping for face masks to prevent the spread of COVID-19, you ...

Forbes contributors publish independent expert analyses and insights. I write about the brain and the body but sometimes other things. New videos show how the N95 masks with an exhalation valve ...

A new study from Florida Atlantic University has modeled how effective face shields and face masks with exhaust-valves are in blocking the dispersal of aerosol-sized droplets. The research suggests ...

“The purpose of masks is to keep respiratory droplets from reaching others to aid with source control. Masks with one-way valves or vents allow exhaled air to be expelled out through holes in the ...

Green lasers pointed at a plastic mannequin head wearing a face shield show how the droplets from a cough or sneeze escape around the sides. Florida Atlantic University, College of Engineering and ...

Researchers at Florida Atlantic University looked at the effectiveness of each. As the number of COVID-19 cases in the United States have reached 6 million, a new study from Florida Atlantic ...

Question: At first there were hardly any masks available and we took what we could get, but now there are a lot more for sale so we have been trying different ones to see what we like. Besides the ...

The politicization of science in the Trump era –– from the manipulation of the National Weather Service to the suppression of information on climate change at the Environmental Protection Agency –– ...

United Airlines is the latest commercial air carrier to update its coronavirus-related personal protective equipment guidance to exclude face masks with built-in exhaust valves, the company announced ...