Ensuring proper ventilation with outside air can help reduce airborne contaminants, including viruses, indoors. However, by itself, increasing ventilation is not enough to protect people from exposure to the virus that causes COVID-19.
There is growing evidence that this virus can remain airborne for longer times and further distances than originally thought. In addition to close contact with infected people and contaminated surfaces, there is a possibility that spread of COVID-19 may also occur via airborne particles in indoor environments, in some circumstances beyond the 2 m (about 6 ft) range encouraged by social distancing recommendations.
