Worldwide pandemic by COVID-19 still continues. Ventilation is recommended as one of the important measures against virus infection. However, if ventilation measures are taken in the wrong way, not only the measures can’t reduce the risk of infection, but also they may make increase it. The effect of ventilation as an infection control, how to determine the volume flow rate requirement, and the ventilation method for effective air exchange has been studied. Based on these results, how we should consider effective ventilation to reduce the risk of viral infections were discussed in this paper.
- Age of air
- Infection probability model
- Measures against virus infection
- Scale for ventilation efficiency
- Volume flow rate requirement
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