Mask made in response to a need for medical filtration masks. It is molded to a face using a heat gun. Each filtration cap fits a filter, and the mask is held on using an elasitic band. Video on forming the mask to most faces can be found here. Covid Mask 19 Tutorial
Infill and supports aren't necessary. However, I did use a thick Wall Line Count (at least 3), and 4 Top Layers. That makes the threads durable for the filter caps. I printed it in PLA at 0.3 Layer Height, 0.4mm nozzle, -0.1 Horizontal Expansion, using Cura 4.2.1.