Mask L N95 with modular filters (adult version)

Mask base adopted to easily print with a modular cartridge like filters with advanced mount system (revision2) (no supports, see correct orientations on screens)
Feel free to remix and add other filters
Use 14 pcs M3 x 8mm bolts to mount all
Use elastic strip 7-10 mm
If want to let your ears relax use Y splitter part (see photos shown for kids version)
This item is the adult version. The kid's version released here https://www.thingiverse.com/thing:4278790

Filter mount holder is constantly fixed by bolts (don't want to use any glue)
It was done also to get the best orientation while printing threads

Add filter infill using any suitable material with diameter 55-50mm
For example cotton pads

Also, check another filter blocks
80mm filter block
https://www.thingiverse.com/thing:4335119
Assisted filter block with 40mm fan
https://www.thingiverse.com/thing:4312126

Video demo (was done for revision 1 that had no Y splitter and without improvements, here uploaded improved revision 2)
https://youtu.be/f2Tw1rEh5gQ

For modifications:
Filter ring holder has thread ISO 50x2
Filter cap has thread ISO 62x2

Update 19.05.2020
Uploaded v3 version of main body. The difference is in the top part - nose zone modified. See on photos v3 vs v2

Update 22/05.2020
Uploaded step files for mods