BECMv1 (Buffalo e-NABLE Crisis Mask)

3D printable respirator mask for COVID-19

PPE: Face masks

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Jeremy Simon


The BECMv1 (Buffalo e-NABLE Crisis Mask) is a derivative of the original Montana Mask. This derivative work focused on design changes to improve fit for a variety of individuals and to improve sealing of the mask and face (i.e. minimize leakage). Effort to date has focused on identifying materials and sizes.

Video overview here:


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.

Materials and methods

Full documentation is available here:

The documentation includes printing instructions, sources and links for materials, assembly instructions, cleaning instructions, etc.

This design and the documentation are a work-in-progress.



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Mini portret pasfoto croppedErik de Bruijn published this design ago