Protective Face Mask

This is a design of a reusable protection mask that I want to share due to the shortage of disposable ones.
Additionally, I intended to make it more efficient (from the filtration capability) and insulation safety.
In case you are wondering, I can't say for sure if its performance would be like the N95 mask, further testing must be performed to determine that.
Please bear in mind this is not a certified designed and will probably never be, you are on your own when deciding to use this item. I would suggest using any certified mask over this one, but in my case I would definitely use it in case no other option available.

I'm currently working on designing some test procedures similar to what the N95 standard suggests, but at this point it would be very helpful the input of an specialist on this items to point out design flaws or improvements as well as testing methods to make this project better and safer.
The filtration pack I would suggest to use is the same use in the disposab