1/ Tweets comparing the #corsironsenthalbox and portable HEPA filtration, including my own. I want to be clear that this is NOT a competition. The whole idea behind a CR box was to provide a viable and effective option for those without the resources to purchase a HEPA system.
2/ In fact, both will absolutely lower respiratory aerosol particles that convey the Omicron variant or other infectious agents. Both will reduce your inhalation dose to these agents, and that reduces your probability of infection and possible adverse outcomes.
3/ The CR box has the advantage of being much less expensive and highly effective if constructed well, and also a cool project and learning exercise for many. It has the disadvantage of being homemade (quality of construction varies) w/ possible leakage if kicked, etc.
4/ HEPA filtration systems have the advantage of not being homemade, and thus consistent engineering quality without much chance of filter by-pass or leaks if someone kicks it, etc.
5/ Neither is right or wrong. They can both work very well. I have two very good HEPA air cleaners in my home & purchased 60 of them for my college (used in shared spaces, conference rooms, etc.). We are now adding 50 CR boxes. Why? because both work to lower risk of infection.
6/ The bottom line is that COVID-19 is an airborne infectious disease. Vaccines are a gift and we should all be thankful for the opportunity to become vaccinated. But we should also strive to dramatically lower our inhalation dose of virus-laden respiratory aerosol particles.
7/ We have the tools to do that. High quality masks, increased ventilation, improved filtration in HVAC systems, and good portable HEPA filtration systems or #corsirosenthalbox es. No rocket science, folks. Just do it, so we all see better days much sooner.
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