The COVID-19 pandemic isn't going away this summer, so keep this info on ventilation, air conditioning and indoor and outdoor spread in mind.
in Guangzhou, China, found coronavirus spread to separate families eating in the restaurant. Each group was sitting near the air conditioner, and the direction of the airflow seemed to correspond with who got sick. Approximately 10 patrons became ill.
This can happen in more confined spaces, including your home. Indoor circulation of the virus typically occurs if you’re in range of the respiratory droplets a person expels into the air when they sneeze, cough or even just talk. These respiratory droplets are often “heavy,” meaning they can float in the air for up to a few feet before they fall to the ground.
The virus may also be “aerosolized,” meaning tiny, lighter-weight particles of the virus can mix into thethrough the air ― and potentially through an AC system ― rather than falling to the ground pretty quickly because of their size. A July report in the National Review also found that while evidence on AC and coronavirus is still mixed, there isIn a piece for The Harvard Gazette,
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