3M Respirator Modification

These 3D-printed parts can make an old, inadequate respirator safe for use in a high-contact, high-exposure setting using a commonly available item as filtration media.

These parts assemble to form a filter cartridge that will fit onto:

1. Any Standard 3M respirator
2. Any standard MSA respirator
3. A 3M Disposable half facepiece respirator (model 5200: https://www.3m.com/3M/en_US/company-us/all-3m-products/~/3M-Half-Facepiece-Disposable-Respirator-Assembly-5201-Organic-Vapor-Medium-12-EA-Case/?N=5002385+3294738366&rt=rud ). This model accepts disposable NIOSH 5101, 5201, and 5301 cartridges (also identifiable by four tabs rather than three).

Combine these parts with some cotton rounds and you have a fairly safe breathing apparatus--this is not recommended for those experiencing symptoms, as exhalation is unfiltered. (Still WIP, I may add this)

Alternatively, should a limited supply of n95 masks be available, this system could stretch the supply substantially. By cutting