First, thanks to Erin and all for the most intelligent layperson's website on COVID 19 by far.
Question: Is anyone working on a decent facemask/ PPE study, or is there one that I haven't found?
There is the stupid one which talks about "t shirt" or "tea towel" material and compares effectiveness, but, well that is kind of lame without giving material specs or sewing patterns.
The study should include at least the following on each material: type (100% cotton etc), weave type, weight per yard (e.g. I think jeans are about 10oz), brand name, and thread count, preferably with links to suppliers. The study should also provide usable sewing pattern(s) used to make the masks.
I wonder if one could use the "spy dust" nitrophenyl pentadien (NPPD) or something to have someone cough/ breathe/ sing/ etc in a room and then flouresce the room to see where it lands. Then two test subjects, one coughing, the other being tested. I think you would want to include a baseline with the same test subject coughing with no PPE. While your at it, test hand washing and other PPE like clear masks and gowns etc
Personally, for masks I use the Kaiser Permanente pleats and ties pattern (easy to find), except I sew in a piece of copper wire to use a nose stiffener and round all the measurements up to even numbers (why 1 3/4 inch? Just do 2 inch, etc). We wash them with the laundry.
Thanks! Let me know everyone's thoughts!