Introduction: 3D Print Powered Respirator for Front Line Covid-19 Workers
This device pushes clean air into a 3m mask or adapted snorkel mask. This utilizes a 12v Fan and 4x roomba 700 Hepa filters. Also known as a PAPR (Powered Air purifying Respirator).
For extended use these are way more comfortable than standard respirators.The PAPR has many advantages. Easier to breath as the air is pushed instead of pulled through the filter for each breath. It purges CO2 preventing headaches and fatigue. Also prevents glasses or shields from fogging. The array of 4 hepa filters aids in high air flow. Very inexpensive to build (around $15)
- 12v DC blower https://amzn.to/3aRwXHk
- 12v Lithium ion Battery pack https://amzn.to/35ghkYH
- DC jacks https://amzn.to/3aPGtL7
- 3D Printer If you dont already have one The Elegoo Mars https://amzn.to/3aPGBKs or Ender3 https://amzn.to/35fa9QE are good dependable models
Step 1: 3D Printing the Parts and Assembly.
Print the STL files available here: https://www.thingiverse.com/thing:4319089
put a thin bead of silicone on the bottom of the filter holder and Bolt it to the fan. It may also be a good idea to use some silicone or 2 part epoxy to secure the wires to the fan to prevent them from pulling off at the solder joint. Wire the fan to a 12v jack so it can plug into whatever 12v battery pack you use.
Tip 2 years ago on Step 1
I just made a $15 version of the PAPR. If you are interested, please take a look at https://www.instructables.com/Viral-Helmets-9999-Hospital-Grade-Viral-Protection/
2 years ago on Introduction
This is fantastic! You did a great job with the 3D printing. I am going to make 1 and work out a belt attachment for this and for the battery. Check out my PAPR hood instructable. https://www.instructables.com/id/Protective-Hood-for-Powered-Air-Purifying-Respirat/
I agree that the face masks fit great. Yours would work great with a full face shield to protect the eyes as well. The cloth/ vinyl hood can be reused and you can wear an N-95 inside of it if that is the protocol that your institution requires. Thank you. I really like your other projects as well. The intubabtion hood is great and so is the cooling vest for your son.
Reply 2 years ago
thank you . i added a version with belt clips on thingverse.