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Respirator frame for coffee filters Answered

I want to design a respirator frame that you can use a coffee filter or two as the filter media. Can anyone with a 3D printer help with this? Maybe an instructables contest. 1st prize winner saves the world.

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OTS_Engineering
OTS_Engineering

14 days ago

Great idea! I would hope that someone with a 3D scanner can get their hands on a respirator mask and build a hard, sturdy frame. Then maybe use Type 2 plastic (recycled milk and distilled water gallon jugs) and a hair drier to form the Type 2 plastic to conform the the mold. If anyone gets the 3D scan completed, can you turn it into a STL file and post it on GitHub? Of course, the Type 2 plastic would have to be washed and sterilized first. then check out a GitHub post called Ventilator (https://github.com/jcl5m1/ventilator) I think we can open source with jcl5m1's GitHub post and do great things!

1
cobourgdave
cobourgdave

16 days ago

If you are designing a respirator for medical use for the Corona virus, the filter media has to be "N95" rated or better. You can Google respirator see the standards for particulate filtering. There are several respirator designs on Thingverse meant to be 3d printed, but these also require "N95" filtering material. When I was looking to cost out "N95" rated filter media, I was really shocked to see the current prices... a little gouging going on here. I have an old box of "N95" rated masks, from several years ago. It cost $13.95 Cdn for 50 masks. At the time I bought these for wood working the marked down price was about $6 Cdn.

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Toxictom
Toxictom

Reply 15 days ago

I know many oil absorbent pads are made of a polypropylene (pp) media. I believe the N95 masks are also made with pp. I wonder if that material would have similar filtering capabilities. Something is better than nothing it appears.