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 protection. Should be supplemented with, for example, goggles.
• Crevices from filament deposition provides areas for bacteria to hide.
• May need to tweak the model for a better seal/fit.
• May be harder to get a seal if you don’t have TPU/flexible filament (e.g. with hot water softening).
• Not as easy to clean or fabricate as fabric face masks.
• I’m sure there are more. Please let us know of any other potential problems.