Design considerations for protective mask development: A remote mask usability evaluation

The design of N95 filtering facepiece respirators (FFRs) continues to pose usability concerns for healthcare workers, which have been exacerbated by the COVID-19 pandemic. The aim of this study was to develop a holistic model to guide mask design improvement. Dental students (n = 38) with experience...

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Bibliographic Details
Published in:Applied ergonomics 2022-07, Vol.102, p.103751-103751, Article 103751
Main Authors: Cloet, Alison, Griffin, Linsey, Yu, Minji, Durfee, William
Format: Article
Language:English
Subjects:
COVID-19
COVID-19 - prevention & control
Health Personnel
Healthcare workers
Holistic mask design approach
Humans
Mask design improvement
N95 filtering facepiece respirators
N95 Respirators
Occupational Exposure
Pandemics - prevention & control
Remote usability
Respiratory Protective Devices
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Summary:The design of N95 filtering facepiece respirators (FFRs) continues to pose usability concerns for healthcare workers, which have been exacerbated by the COVID-19 pandemic. The aim of this study was to develop a holistic model to guide mask design improvement. Dental students (n = 38) with experience wearing N95 FFRs participated in a randomized wear trial of three alternative protective masks. A mixed methods survey was used to examine usability of individual mask design components, the relationship of facial/head area to mask features, and overall mask design. Survey results indicated MNmask v1 demonstrated higher usability in seal confidence (M = 3.46), while MNmask v2 performed higher in satisfactory fit (M = 3.50). Design components of nose wire and head/neck bands were the most problematic, while conditions of skin irritation and tight/loose fit created an unfavorable wear experience. To consider healthcare workers’ needs in improving the usability of protective masks, a model is presented to consider characteristics of fit, comfort, material, and design. •Holistic design model to inform considerations for protective mask development.•Mixed methods approach to evaluating mask usability by zone and component.•Poor mask fit was found at the nose and under chin.•Mask discomfort was primarily associated with nose wire and bands.•Evaluating mask design holistically is necessary to improve compliance and comfort.
ISSN:0003-6870
1872-9126
DOI:10.1016/j.apergo.2022.103751