How to build a PAPRa Fan Box (v3)
How-To guide for building the Tetra PAPRa fan box (Late January 2021 version).
PAPRa Build Guide (Jan 31 2021 Edition)
How to build the January 31 2021 version of the Tetra PAPR.
Quick Synopsis
This guide will walk you through how to build a Personal Air Purifying Respirator, also known as a PAPR. We assume that you have some knowledge of 3D-printing, and cutting foam with a knife or using a stencil or a cricut, and perhaps some soldering. In the end, you will have four things: a box with a filter and a fan in it, a second box with batteries and a fan controller, a mask, and straps and hoses to hold it all together.
Please note that this system will not protect you from anything landing in your eyes. For that protection, either the mask will need to be modified to be a helmet, or you will need a face shield.
Parts needed
The entire set of parts to build the PAPR is:
There are four components to build:
The M12 Controller Box (v3 if you have the controller circuit board in this github repository, v1 if you do not)
And the instructions to build all of these components can be found in the Tetra PAPRA Components section.
How to build a PAPRa m12 Battery Controller (v1)
How-To guide for building the Tetra PAPRa m12 battery controller (October 2020 version).
How to build a PAPRa m12 Battery Controller (v3)
How-To guide for building the Tetra PAPRa m12 battery controller (Late January 2021 version).
How to build a PAPRa Mask (v3)
How-To guide for building the Tetra PAPRa mask (Late January 2021 version).
How to configure the PAPRa over-the-shoulder strap setup
How-To guide for configuring the over-the-shoulder straps for the Tetra PAPRa.
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.
Last modified April 27, 2021: add past build guides for Jan 31, 2021 (5886392)