3D Printable DIY Filter Mask

A relatively simple 3D printable filter mask with optional, removable front cover to shield droplets. https://youtu.be/oy2zM_xlmvg

Edit, or just save as STL: https://a360.co/39rR0vm (CC0 Creative Commons Public Domain - "Freely you have received, freely give." -Matt 10:8)

For best results:
- Print the face seal with TPU/flexible filament for an airtight seal (test by covering front opening).
- Fill in crevices (inherent with filament deposition) to reduce areas bacteria can hide.
- Use as effective a filter you can find that is still breathable.
- Use an elastic band that will maintain the seal.

Benefits:
- Customizable front cover for additional protection as well as potential personalization (if you want to do a bit of 3D modelling).
- Usable with a variety of filter materials (although this could be a drawback with poor materials).
- Few pieces for easier cleaning and printing (Face seal, filter cap, and optional front cover)

Drawbacks:
- Not certified.
- No eye