Flexfit Face Mask

Model ID 3DPX-014173Category Labware & DevicesDevice Use Safety and Personal Protective EquipmentKeyword(s) Quick Fabrication Flexible Flexfit Face Mask PPEDesigned by re:3D, this improved PPE Face Mask uses flexible TPU and an accordioned edge to fit to the face and provide a tight seal. The Flexfit Face Mask accepts a 2” x 2” piece of filter material to reduce the amount of filter material needed to provide protection. A PETG part holds the filter material in place. The mask accepts standard 0.25” elastic to strap to the face. This design was submitted to an America Makes Maker Challenge for PPE design for the COVID response effort.This NIH design entry includes both a large and small version of the face mask to accommodate different faces. Both versions are compatible with the same size filter material and elastic straps, and both use the same PETG part to hold the filter material.Printer Technology/Material Material ExtrusionPrinter Make/Model Any FDM/PJP/FFF PrinterPrint Units mmPre- and Postprocessing Instructions Face mask design is optimized for printing from Ninjatek Cheetah, a flexible TPU with a shore hardness of 95A.Resolution: 0.4mm nozzle and 0.3175mm layer heightTemperatures: 230C nozzle, 60C bed3 solid top layers, 2 solid bottom layers, and 2 perimeters. First layer height and width at 120%. Infill: 15% rectilinear infill with 30% outline overlapSupport: 0%60 mm/s default speedThe PETG filter part has the following settings:Resolution: 0.4mm nozzle and 0.3175mm layer heightTemperatures: 235C nozzle, 60C bed3 solid top layers, 2 solid bottom layers, and 2 perimeters. First layer height and width at 120%. Infill: 15% rectilinear infill with 22% outline overlapSupport: 0%60 mm/s default speedFor dual extrusion printers, both parts can be printed in the same print by using 2 separate processes in Simplify3D.Attribution :Flexfit Face Mask is a product of re:3D, Inc. https://re3d.org/Reviewer Notes This device is a general purpose face mask intended for use in the community and is not suitable for use by a healthcare professional or in a healthcare facility or environment, as described in FDA Guidance Enforcement Policy for Face Masks and Respirators During the Coronavirus Disease (COVID-19) Public Health Emergency, Section V B. This device has not been tested to assess the out-gassing limits of the material or their corresponding health effects.*This model sourced with permission from the NIH 3D Print Exchange*