The effects of N95 mask and face shield on speech perception among healthcare workers in the coronavirus disease 2019 pandemic scenario
Srikanthi Bandaru, Ann Mary Augustine, Anjali Lepcha, Sofia Sebastian, Mahasampath Gowri, Ajay Philip, Manju Deena Mammen
Abstract
OBJECTIVE: The current circumstances of the coronavirus disease 2019 pandemic necessitate the use of personal protective equipment in hospitals. N95 masks and face shields are being used as personal protective equipment to protect from aerosol-related spread of infection. Personal protective equipment, however, hampers communication. This study aimed to assess the effect of using an N95 mask and face shield on speech perception among healthcare workers with normal hearing. METHODS: Twenty healthcare workers were recruited for the study. Pure tone audiometry was conducted to ensure normal hearing. Speech reception threshold and speech discrimination score were obtained, first without using personal protective equipment and then repeated with the audiologist wearing an N95 mask and face shield. RESULTS: A statistically significant increase in speech reception threshold (mean of 12.4 dB) and decrease in speech discrimination score (mean of 7 per cent) was found while using the personal protective equipment. CONCLUSION: Use of personal protective equipment significantly impairs speech perception. Alternate communication strategies should be developed for effective communication.