The N95 mask is believed to be fully capable of preventing the corona virus. Now scientists have revealed in a study that masks with exhalation valves are not able to slow down the pace of preventing corona infection. For this research, scientists used high-speed videos of air flow. This research is published in the Journal of Physics of Floods. Vaccines are being researched to prevent corona virus infection worldwide. Until the vaccine is made, the mask is being used to prevent this.
Researchers at the National Institute of Standards and Technology (NIST) made a video of winds passing through a valve mask and a valve without a mask, and based on its pattern, Matthew Stamets, a research engineer, said, the video clearly shows that The air is passing through the valve without a filter, thereby eliminating the purpose of wearing a mask. The mask with a valve makes it easier for the wearer to breathe and it gives protection to the wearer. For example, workers at a construction site or from hospital patients get protection from valve masks.
