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Most air conditioning systems don't protect against the coronavirus. In some cases, they can actually facilitate spread

from USA Today

Most air conditioning systems don't protect against the coronavirus. In some cases, they can actually facilitate spread USA Today Though some public health experts expected coronavirus transmission to wane in the summer as temperatures rise and the air becomes more humid, cases have actually skyrocketed in some of the hottest and stickiest parts of the country. Engineers and ventilation experts said this may be in part because residents escape the heat by retreating indoors where heating, ventilation and air conditioning systems could exacerbate airborne transmission with unplanned air currents. READ MORE

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