Posted on 14 November 2021 by Thomas Spirka
N95 masks have been much in demand during the COVID-19 pandemic, due to being breathable and highly effective at protecting the public, while also reducing environmental waste by being reusable. 3D printed N95 mask filters are also antimicrobial or sterilizable and suitable for flexible design. However, these filters have a slow production rate, something that is being tackled through a workflow involving binder-jet 3D printing, micro-CT scanning, 3D image processing, and CFD simulation. Researchers at the University of Pittsburgh, ExOne, Ansys, and Synopsys have worked on developing an efficient digital prototyping process to save time and resources when manufacturing 3D-printed copper and stainless-steel mask filters.