The coronavirus disease 2019 (COVID-19) pandemic has substantially impacted the global supply chain of personal protective equipment (PPE) for hospitals. At the time of our project, local and national recommendations for PPE were based on supply rather than provider or patient safety, and we intended to give providers a better option than scarves and cloth masks. Our objective was to utilize in-house 3D-printing capabilities to make 3D-printed face masks for our orthopaedic trauma providers that use filters that were verified to be nearly equivalent to the filtration material that is found in N95 masks. To meet this goal, we used open-source face-mask design files from the National Institutes of Health with use of an Ultimaker S3 desktop printer. We printed 50 reusable face masks with replaceable filter inserts and distributed them to physicians, physician assistants, and residents in a midwestern level-I trauma center. Our work highlights the innovative solutions that are being explored on a local level to confront the nationwide PPE shortage in the United States.

2019年冠状病毒病（COVID-19）大流行已经严重影响了医院个人防护设备（PPE）的全球供应链。在我们开展项目时，当地和国家对个人防护设备的建议基于供应而不是提供者或患者的安全，并且我们打算为提供者提供比围巾和布口罩更好的选择。我们的目标是利用内部3D打印功能为我们的骨科创伤提供者制作3D打印的面罩，这些面罩使用的过滤器经验证与N95面罩中的过滤材料几乎相同。为了实现此目标，我们使用了国立卫生研究院的开源面罩设计文件，并使用了Ultimaker S3台式打印机。我们印刷了50个可重复使用的口罩，上面装有可更换的滤芯，并将其分发给医生，医生助理，以及中西部一级创伤中心的居民。我们的工作重点介绍了在本地范围内正在探索的创新解决方案，以应对美国全国PPE短缺的问题。