DIY mask shortage solutions

I've seen a lot of posts about various diy masks and this: https://diymask.site/ is the most comprehensive I've come across. This solution was invented to combat specifically what we are going through. It is in use and has some testing behind it. These pocket style masks in conjunction with nano/hepa filter material are quite effective. I know hospitals already have this filtration material on hand and it can also be acquired in large quantities. Wash and reuse mask and replace filter frequently throughout the day. These can be used on top of N95 masks also to increase longevity. Share with people you know working on these solutions. The sooner our community can help the better.