People are worried that the virus could be spread by air conditioning systems. Here's what researchers do — and don't yet — know.
Copyright 2020 NPR
Can Air Conditioners Spread COVID-19?
Corrected: August 17, 2020 at 10:00 PM MDT
An earlier version of this story incorrectly described the air exchange that occurs with an HVAC system and did not explain that these systems bring in outdoor air and send out an equal amount of indoor air.