https://www.youtube.com/watch?v=QaW6jPxqJG8

https://www.youtube.com/watch?v=bJSkMb7mC3I

Being a part of Health Care System, and facing the unavailability of N95 mask, I decided to 3d-print my own mask.

After doing some research on web, I liked two 3d printable mask designs:
Montana Mask & La-Factoria mask.
Both of them have their own pros and cons, which I tried to remove by altering their designs.

I used La-factoria design as a starting base. I modified it to be able to accept larger piece of filter (2 x 2 inches), and filter box similar to Montana mask. Also modified the mask by making it smaller for smaller face, but still with same size of filter opening (2 x 2 inches).

I used the filter port/box of Montana mask, but doesn't like the design where the filter has to be changed from inside of mask. I modified the filter box my making it bigger that can accept pre-filter and filter both. It can accommodate Hepa/ pleated filter too of any MERV value.

So basically, it's the highly modified combination of both the above masks.

Tronxy-P802MA

Doesn't Matter

Yes

0.2

25%

Please print mask with front of mask resting on bed. You will need to rotate the stl files. I printed them with minimal support.