Poor Man's Fabric Testhttps://smartairfilters.com/en/blog/best-materials-make-diy-masks-virus/?rel=1How to Find the Best Material: The Poor Man’s Fabric TestOne problem for using this data at home is that materials like T-shirts and bed sheets are different. Some are thicker; some are thinner. How can you be sure the material in your home will perform similar to the ones we tested?
Without a $3,000 laser particle counter, here’s one handy way to estimate this: try your own “Poor Man’s Fabric Test.”
- Hold your material up to the light.
- See how much light passes through it.
- Compare it to this rubric to estimate the effectiveness of your material.