20
Participants
Start Date
July 19, 2023
Primary Completion Date
September 30, 2023
Study Completion Date
January 30, 2024
N95 mask and surgical mask
Twenty participants were randomly assigned to the N95 mask group (n=10 ) and the Surgical mask group (n=10 ). The N95 mask group and the Surgical mask group were used in two stages alternately. When the first round of the test was completed and after a 24-hour washing out period, the participants of the Surgical mask group and the N95 respirator group were exchanged for the second round of the test.
Qilu Hospital of Shandong University, Jinan
Qilu Hospital of Shandong University
OTHER