I spent the day today prototyping a new face mask design with my wife and kids. It’s loosely inspired by the research here:
which seems to indicate that T-shirts are a good candidate for filter media, and that the key challenge with homemade masks is the seal around the edges. This design uses a custom fit based on the length of the ear straps, the amount of material rolled down the top, and the tightness of the ties, to accomplish a better seal.
I am sharing it here to solicit improvements. Subjectively it seems to have an excellent seal, provides moderate resistance when breathing, stays in place during regular activity, and is comfortable to wear. I’d love suggestions for how to improve it - please make any changes you think would help and post your results in this thread.
This is prototype #35.
tshirt mask-1-02.zip (4.0 KB)
You can drag and drop these into the Glowforge UI. Here’s where on the shirt you print them.
And for fun, a few pictures from R&D: