Montana Mask 90% scale (Small) with normal sized filter opening

This is a smaller version of the Montana Mask. I initially just scaled the whole thing down, but wanted to give a normal size for the filter for smaller faces. This smaller mask uses the same filter holder as the original mask.

The original mask can be found here: https://www.thingiverse.com/thing:4245033/files. I am also including the filter holder here as well.

https://youtu.be/h_MmtO9nQec
A video on how to assemble and cut out filters from HEPA. Cut the weather stripping to about 12.5" for this smaller mask.

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Help in the effort to protect our health care providers and to beat COVID-19.

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Products used

TPU: https://www.amazon.com/PRILINE-TPU-1KG-Filament-Dimensional-Accuracy/dp/B074DV9JMX/ref=as_li_ss_tl?crid=1P7ZLGQVHSEWE&keywords=priline+tpu&qid=1585370185&sprefix=prilin,aps,219&sr=8-2&linkCode=sl1&tag=drcameron-20&linkId=6923a3fa0016bac519afdaa3dfbad726&language=en_US
PLA: https://www.amazon.com/PRILINE-TPU-1KG-Filament-Dimensional-Accuracy/dp/B074DV9JMX/ref=as_li_ss_tl?crid=1P7ZLGQVHSEWE&keywords=priline+tpu&qid=1585370185&sprefix=prilin,aps,219&sr=8-2&linkCode=sl1&tag=drcameron-20&linkId=6923a3fa0016bac519afdaa3dfbad726&language=en_US
PETG: https://www.amazon.com/PRILINE-TPU-1KG-Filament-Dimensional-Accuracy/dp/B074DV9JMX/ref=as_li_ss_tl?crid=1P7ZLGQVHSEWE&keywords=priline+tpu&qid=1585370185&sprefix=prilin,aps,219&sr=8-2&linkCode=sl1&tag=drcameron-20&linkId=6923a3fa0016bac519afdaa3dfbad726&language=en_US
HEPA Filter material: https://www.amazon.com/PRILINE-TPU-1KG-Filament-Dimensional-Accuracy/dp/B074DV9JMX/ref=as_li_ss_tl?crid=1P7ZLGQVHSEWE&keywords=priline+tpu&qid=1585370185&sprefix=prilin,aps,219&sr=8-2&linkCode=sl1&tag=drcameron-20&linkId=6923a3fa0016bac519afdaa3dfbad726&language=en_US
Weather Stripping: https://www.amazon.com/PRILINE-TPU-1KG-Filament-Dimensional-Accuracy/dp/B074DV9JMX/ref=as_li_ss_tl?crid=1P7ZLGQVHSEWE&keywords=priline+tpu&qid=1585370185&sprefix=prilin,aps,219&sr=8-2&linkCode=sl1&tag=drcameron-20&linkId=6923a3fa0016bac519afdaa3dfbad726&language=en_US
Monoprice Maker Select 3D Printer: https://www.amazon.com/PRILINE-TPU-1KG-Filament-Dimensional-Accuracy/dp/B074DV9JMX/ref=as_li_ss_tl?crid=1P7ZLGQVHSEWE&keywords=priline+tpu&qid=1585370185&sprefix=prilin,aps,219&sr=8-2&linkCode=sl1&tag=drcameron-20&linkId=6923a3fa0016bac519afdaa3dfbad726&language=en_US

LEGAL DISCLAIMER: The 3D printed masks are 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 N-95 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. Billings Clinic, Marlin D. Richardson, M.D., Spencer Zaugg, DDS, Colton Zaugg, D. Joshua Cameron, PhD, private makers who are supplying the masks, or anyone associated with makethemasks.com, 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.

The product links above are affiliate links. Amazon pays me a small commission if you click these links to make purchase. I am not an employee of Amazon and they have not endorsed this product, nor did they ask me to make this video. Your purchases support my efforts.