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3D Printed frames to enable reuse and improve the fit of N95 and KN95 respirators.

Malia B McAvoyAi-Tram N BuiChristopher HansenDeborah PlanaJordan T SaidZizi YuHelen YangJacob FreakeChristopher VanDavid KrikorianAvilash K CramerLeanne SmithLiwei JiangKaren J LeeSara J LiBrandon BellerMichael P ShortSherry H YuArash MostaghimiPeter Karl SorgerNicole R LeBoeuf
Published in: medRxiv : the preprint server for health sciences (2020)
The use of mask frames can prolong the lifespan of N95 and KN95 masks by serving as a substitute for broken or defective bands without adversely affecting fit. Frames also have the potential to improve fit for some individuals who cannot fit existing masks. Frames therefore represent a simple and inexpensive way of extending the life and utility of PPE in short supply. For clinicians and institutions interested in mask frames, designs and specifications are provided without restriction for use or modification. To ensure adequate performance in clinical settings, qualitative fit testing with user-specific masks and frames is required.
Keyphrases
  • systematic review
  • obstructive sleep apnea
  • risk assessment
  • positive airway pressure