Evidently masks can help contain the virus spread, and making our own means we are not taking supplies from front line workers.
According to CDC and World Health Organization guidelines, only the sick, and their caretakers, should wear face masks. Here’s why University of San Francisco research scientist Jeremy Howard thinks otherwise. Here is a direct video link.
And this one is good on making masks from vacuum bags.
A doctor explains how to make the safest face mask. This is a safe face mask that if built properly should be donated to your local emergency services. It utilizes a HEPA filter, which is much, much better than a cotton mask.Here is a direct video link.
And lastly, this one makes them from paper towels and paper around the house. Here is a direct video link.