Even with a mask like
<Anchor>
, the effect varies greatly depending on how you wear it, and a research team in the United States experimented with wearing a dental mask that could prevent saliva droplets much better.
This is Park Chan-geun.
<Reporter> A
team of pediatricians at the University of North Carolina in the United States tried wearing a dental mask in different ways, and then tested which method was most effective for quarantine.
Taking into account the particle size of the coronavirus, 0.5 micrometers of sodium chloride particles were scattered in the air, and then I spoke and moved my head as I do in everyday life.
Normal use was the least efficient, and when the mask was strongly adhered to the face with nylon stockings or rubber bands, the efficiency more than doubled.
In particular, just by knotting and tightening a string near the chin of the mask, the space between the mask and cheeks was significantly reduced, so the blocking effect increased by 56% rather than just using it.
Research shows that even if it's cumbersome to use a mask that you need to wear every day and a tool like a rubber band every time, you can increase the barrier effect in a simple way.
(Video coverage: Park Hyeon-cheol, video editing: Chae Cheol-ho, CG: Lee Jong-jung)