For the emergency, Covid 19
I modified this mask.
The original file can be found here:
the author is lafactoria3d
I made a cylindrical filter block, which can be dismantled to facilitate washing and cleaning.
In emergency it is possible to use make-up remover discs, for cosmetics.
BE CAREFUL! I AM NOT RESPONSIBLE FOR THE TYPE OF FILTER MATERIAL YOU WILL USE.
IF YOU DO NOT USE THE RIGHT FILTERING MATERIAL, THE MASK IS USELESS
If you imagine it, you can create it!