Coronavirus / Flu Reusable Emergency Respiratory Mask

The news an panic surrounding Coronavirus has drastically reduced the availability of respiratory masks / surgical masks / dust masks. I designed this to be a reusable mask frame, which can be used with any available filter materials that may be available, such as coffee filters, paper towels, napkins, tissues, toilet paper....

I designed this to be a quick print and easy to install/replace the filter material. For elastic, rubber bands or elastic cord can be used, or maybe even string if you have nothing else available. This will scale up and down as needed without the need for any redesign.

As shown in the pics, this prints flat, with a printed hinge in the middle. This keeps the symmetry aligned for installing the filter material. One side contains larger through-holes, while the other side has a through hole with an extruded boss that fit snuggly in the other half when folded and when filter material is installed. The chosen elastic helps to keep the halves together and the filter material in place.