The KF94 mask has a high blocking power to filter out more than 94% of particles with an average size of 0.4μm.<br><br>He and two acquaintances went to Daegu by
car. Even in the car, I was wearing a mask for an hour. The first thing I did while entering the presentation was to wash my hands with the disinfectant provided. People gathered in the underground classroom were wearing masks at first. However, as time passed, more and more
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Jonathan Mesiano-Crookston (jmcrookston@mastodon.social)'s status on Wednesday, 27-Mar-2024 15:04:13 JSTJonathan Mesiano-Crookston