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

ABSTRACT:

Background

In response to supply shortages caused by the COVID-19 pandemic, N95 filtering facepiece respirators (FFRs or "masks"), which are typically single-use devices in healthcare settings, are routinely being used for prolonged periods and in some cases decontaminated under "reuse" and "extended use" policies. However, the reusability of N95 masks is limited by degradation of fit. Possible substitutes, such as KN95 masks meeting Chinese standards, frequently fail fit testing even when new. The purpose of this study was to develop an inexpensive frame for damaged and poorly fitting masks using readily available materials and 3D printing.

Results

An iterative design process yielded a mask frame consisting of two 3D printed side pieces, malleable wire links that users pres

SUBMITTER: McAvoy M 

PROVIDER: S-EPMC8182357 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature