A recent study suggests air conditioning systems could play a role in spreading the coronavirus. | Tuesday, June 23, 2020 Households across the US are cranking their air conditioners to handle the heat with summer just around the corner. But one alarming new study suggests that the coronavirus can be easily spread though our air conditioning systems. According to University of Maryland environmental health professor Donald Milton, air conditioners can blow around infected droplets that are hanging in the air, “With enough air movement, your nose can pull in large particles,” Milton says. Think pollen, for example.