Wearing N95 masks decreases the odor discrimination ability of healthcare workers: a self-controlled before-after study
Author:
Luo Guanguan1,
Zou Xingnan1,
Zhou Xianlong1,
Gan Jiaohong1,
Jiang Cheng1,
Zhao Zhigang1,
Zhao Yan1
Affiliation:
1. Emergency Department, Zhongnan Hospital of Wuhan University, China, Hubei, Wuhan
Abstract
Objective
During the coronavirus disease 2019 (COVID-19) pandemic, the N95 mask is an essential piece of protective equipment for healthcare workers. However, the N95 mask may inhibit air exchange and odor penetration. Our study aimed to determine whether the use of N95 masks affects the odor discrimination ability of healthcare workers.
Methods
In our study, all the participants were asked to complete three olfactory tests. Each test involved 12 different odors. The participants completed the test while wearing an N95 mask, a surgical mask, and no mask. The score for each olfactory test was documented.
Results
The olfactory test score was significantly lower when the participants wore N95 masks than when they did not wear a mask (7 vs. 10, p < 0.01). The score was also lower when the participants wore N95 masks than surgical masks (7 vs. 8, p < 0.01).
Conclusion
Wearing N95 masks decreases the odor discrimination ability of healthcare workers. Therefore, we suggest that healthcare workers seek other clues when diagnosing disease with a characteristic odor.
Funder
National Natural Science Foundation of China
Emergency Response Project of the Hubei Science and Technology Department
Emergency Diagnostic and Therapeutic Center of Central China
Subject
General Agricultural and Biological Sciences,General Biochemistry, Genetics and Molecular Biology,General Medicine,General Neuroscience
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