July 21, 2020
Description
This is some left over designs in my computer. I made in back in March. This provides the best protection (rain) for the mask / filter , while providing great air flow.
The virus look is for the fun.
So, you will need 3M respirator in order to use this, it will fit to most 3m respirator with the original quick lock system.
All you do is to cut out a circle with diameter of 38mm from any 3 layer mask, and insert it in as filter, like my other filter capsule. (check out my other designs). Then screw it in.
(see video for details)
License:
Creative Commons - Attribution - Non-Commercial - No Derivatives
alphaa
