Avoiding crowded indoors spaces and ventilation in Corona virus (COVID-19)

The CDC recommends that crowded indoors spaces should be avoided. When indoors, increasing the rate of air change, decreasing recirculation of air and increasing the use of outdoor air can reduce transmission. The WHO recommends ventilation and air filtration in public spaces to help clear out infectious aerosols.

Exhaled respiratory particles can build-up with enclosed spaces with inadequate ventilation. The risk of  COVID-19 infection increases especially in spaces where people engaged in physical exertion and raise their voice. For example : Exercising, Singing & Shouting as this increases exhalation of respiratory droplets. Prolonged exposure to these conditions, typically more than 15 minutes, leads to higher risk of infection.

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