Breathing mask - functional (work in progress)

I have ventured to create a breathing mask, for use in the home workshop. There is not a super mask is not recommended for toxic jobs or something similar.

I'm going to use for everyday things, such as some spray paint when I'm using the disk sander or grinder working wood etc..

It has two interchangeable hose filters and esay removable for cleaning. It also will have a valve (above the nose), which allows the air outlet, but not the entrance. thus forcing fresh air to have to enter through the side holes.

bayonet conectors have been modified from the thing were the filters come, because the model did not fit right.
These are now firm and also adding a (rubber) is much better seal.

If there is a gap in the joints of the mask and filters conectors, use some thermal glue will be enough to seal it. I will also put a small strip of foam around the inside (where the nose rests) so that it is as tight as possible.

I've done some plugs to remove the filters if you want. Or w