1/ In the indoor air quality field, source removal (or avoidance of ever having the source in a space) is a fundamental principle.
“If there is a pile of manure in a space, do not try to remove the odor by ventilation. Remove the pile of manure.” Max von Pettenkofer (1858)
“If there is a pile of manure in a space, do not try to remove the odor by ventilation. Remove the pile of manure.” Max von Pettenkofer (1858)
2/ During the pandemic that means doing all that's possible to avoid having infected persons in a space with others. Stay home if feeling symptoms. Test and isolate.
3/ If source removal is not possible, then source reduction becomes important. Lowering density lowers the probability of a source being present, but does not assure removal of source. Everyone wearing high-quality, e.g., N95, masks dramatically lowers source emissions.
4/ Couple with other means of lowering inhalation dose to virus-laden aerosol particles. Tools: Increase ventilation, improve filtration in HVAC systems, use right-sized portable HEPA air cleaners and/or @CorsiRosenthalBox es, upper-room UVGI.
5/ Complete this sentence ....
None of this is R_________ S__________, folks.
None of this is R_________ S__________, folks.
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