Covid-19 Masks: Dr. Songer of Maker Masks joins us for Part 2 of our discussion on Polypropylene fabric and masks

Summary: Dr. Songer joins us for part 2 of our discussion of Polypropylene and masks. For more information, go to: <a href="http://makermask.org/" rel="noopener">http://makermask.org/</a>. There is lots of cool science and mask information.