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The widespread use of masks during the COVID-19 pandemic has posed numerous communication barriers, muffling speech and impeding lip-reading. For deaf or hard-of-hearing (DHH) individuals, masks have made daily as well as clinical interactions especially difficult. With approximately 72 percent of people older than 65 experiencing hearing loss, and with this age group having higher hospitalization rates compared to others, the increased availability of transparent masks may be particularly important in health care settings. A research team led by investigators from Brigham and Women’s Hospital and the Massachusetts Institute of Technology evaluated attitudes toward their newly engineered, transparent mask by surveying members of the general population and health care workers, including DHH health care workers. They reported that 91 percent of DHH health care workers felt that communication would be easier with a transparent mask, with positive expectations from other health care workers and the general population as well. The results of their surveys are published in JAMA Network Open.

“Transparent masks have the potential to address or overcome barriers of communication, especially within health care settings,” said corresponding author Giovanni Traverso, bartonella and levaquin MB, BChir, Ph.D., of the Brigham’s Division of Gastroenterology and the Department of Mechanical Engineering at MIT. “It’s a simple message, but it’s important. Patient interactions are critical and there are measures we can take to improve them.”

When members of the general population and health care workers were shown a video of an individual smilling beneath an opaque N95 mask, only 20 to 25 percent were able to identify the corresponding emotion as “happy.” This number increased to roughly 78 to 88 percent of respondents when the model wore a transparent N95 mask.

Among clinicians, nearly two-thirds of general health care workers and 82 percent of DHH health care workers felt positively about wearing a transparent mask to communicate with patients, with roughly the same proportions, respectively, stating that opaque masks worsened communication with patients. The 123 general health care workers who responded to the survey were employees of Mass General Brigham and the 45 DHH respondents were affiliates of the the Association of Medical Professionals with Hearing Losses.

To evaluate perspectives on transparent masks within the general population, the researchers polled 1,000 U.S. adults representative of the national population using the online, opt-in survey provider, YouGov. Forty-five percent of these respondents reported feeling positively about interacting with a health care worker wearing a transparent mask and 36.6 percent felt neutrally. Studies with greater sample sizes, including health care workers from multiple systems, are necessary to validate this study’s results. Future investigations can also evaluate respondents’ abilities to detect a range of different emotions.

The study’s authors hope that their results will demonstrate the utility of transparent masks, especially for DHH individuals. The authors are part of a larger team of Mass General Brigham and MIT researchers who have engineered a transparent, resusable mask called the TEAL Respirator, which they are working to deploy in hospitals through the efforts of Teal Bio.

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