1/ Challenged by some as to why I am wearing a mask in this video if the CR Box works so well. First, I wear an N95 mask in all indoor shared spaces at work. I do not apologize to anyone for that.
https://twitter.com/CorsIAQ/status/1627072365724303361
2/ For the size of the dean's suite & level of ventilation, this single CR box reduces our inhalation dose of respiratory and other aerosol particles by roughly 50% on high setting. That's good, but not nearly the dose reduction achieved by wearing a well-fit N95 mask.
3/ An N95 mask yields at least a 1 in 20 (95%) reduction in inhalation dose of virus-laden respiratory aerosol particles (and higher for particles of the size most relevant to conveyance of SARS-CoV-2).
4/ Add the #CorsiRosenthalBox as an extra layer and we are up to AT LEAST 1 in 40 reduction (97.5%) - and actually higher. Isn't the mask good enough? In fact, I'd feel fine just wearing my N95 mask. However, we have frequent visitors not required to wear a mask & do not.
5/ The CR Box provides some level of protection for visitors, and particularly groups of visitors who visit the dean's suite. And the CR Box further improves the level of inhalation dose reduction for those of us who work in the suite. It's neither a hassle nor rocket science.
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