@linseymarr@CorsIAQ This is certainly conservative if there is recirculation with filtration. Most filters will remove 90+ percent of the droplet nuclei relevant for COVID-19, so if the fresh air fraction is low this could be off by a factor of 10 (in the safe direction).
@TomD_Hann @MATLAB@LIGO Analysis is not sensing. @LIGO was built with @MATLAB. And next gen GW detectors are being designed with @MATLAB. No analysis w/o detector