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If you must ride in a moving car with a person not in your bubble, which windows should you open? The answer to these questions comes from fluid mechanics researchers at Brown University and UMAss Amherst.

Two occupants should sit diagonally with the passenger in the right rear seat.  Safest is to open all windows to maximize air exchange.  If it’s cold, turn up the heat.  

The two windows you definitely want open are the right front and left rear to create an air curtain.  You’ll get added safety by opening the window next to the person who could possibly be infected: perhaps the Uber driver.

An additional left rear passenger: open all windows.

https://advances.sciencemag.org/content/early/2020/11/30/sciadv.abe0166

#covid #automobile #ventilation #fluidmechanics