130
Participants
Start Date
June 17, 2022
Primary Completion Date
December 22, 2023
Study Completion Date
December 1, 2024
masks (surgical mask, respirator)
The mask (surgical mask, respirator) will be worn on the face of the in vitro bionic model in the procedure room for measuring droplet exposure.
Peking Union Medical College Hospital, Beijing
Tsinghua University
OTHER
Peking Union Medical College Hospital
OTHER