Shroud measurements
Suggestion from 
alhu on Aug. 16, 2021, 3:15 p.m.
Update page to include changes to shroud measurement, image for measuring internal diameter and updated figure notations
Changes in this suggestion:
alhu authored on Aug. 16, 2021, 3:14 p.m.
Comment from
philipn on Aug. 16, 2021, 5:48 p.m.
Thank you, accepted!!
I wonder what a good "lower bound" for the CADR for smoke-sized particles and COVID-sized particles would be with a 'typical' box fan + cube setup. I have my own estimates and I know David Elfstrom is performing some tests of the full cube soon.
If we have this rough lower bound then we can tell people to e.g. check out the (COVID-oriented) portable air calculator spreadsheet from Harvard/CU Boulder.