BE Mask v1.3.4 (Buffalo e-NABLE Mask)

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The BE Mask v1.3.4, also known as the Buffalo e-NABLE Mask, is a modified version of the Montana Mask. This derivative work focused on making design changes to improve fit for various individuals and to enhance sealing of the mask against the face, thereby minimizing leakage. Update 4/9/2020: Scaling was adjusted to allow two pieces of filter material, as recommended based on initial testing results. Update 5/12/2020: The mask version number changed to v1.3.0, including several changes: All models were recreated from scratch as solid-body models (v1.0 was based on modified mesh files) Consolidated into three sizes (small, medium, and large) Thicker protective grid added to the front of the mask Fillets were added to the protective grid for improved printing Redesigned strap connectors for cleaner printing Made mask walls slightly thinner for improved flexibility Version number included on the mask body interior Sizing indicator (“S”, “M”, “L”) included on both the mask body and filter frame insert Update 5/15/2020: The version changed to v1.3.1, including minor adjustments to sizing based on the latest facial analysis results from Buffalo/e-NABLE team. Update 5/18/2020: The version changed to v1.3.2, including sizing adjustments based on user feedback. Update 5/28/2020: The version changed to v1.3.3, including the following changes: Adjusted the position of the strap connectors so the elastic doesn't end up too close to the eyes when wearing the mask Enlarged the filter housing in the mask slightly so the filter frame isn't quite as tight Update 6/2/2020: The version changed to v1.3.4, including the following changes: Re-shaped the strap connectors for improved printability (tapered edges) Enlarged the strap connector openings to make it easier to install the elastic straps Video overview available here: Fabrication and Post-Processing Guide video available here: DISCLAIMER: The 3D printed mask information presented here is intended to assist the general public during the current global pandemic related to COVID-19 and the related nationwide shortage of personal protective equipment. Please be aware that this mask design is not intended to replace standard protective equipment such as N95 masks or surgical masks when that equipment is available. The use of these 3D printed masks has not been fully tested and has not been approved by federal or state authorities. The individuals associated with developing and producing this mask design assume no liability and make no representations, warranties, or guarantees regarding the safety, efficacy, or appropriate use of these masks in any particular situation. Each facility should test each batch of masks prior to relying on them for protection. Use of this information for any purpose is at the maker's and user's own risk.