Remodelling and modifying heating, ventilation, and air-conditioning (HVAC) systems can help lower risk of infection. The entry of fresh air and stale air exhaust and filteration are the two key elements. Indoor spreadSeveral outbreak investigation reports have shown that Covid-19 transmission is particularly efficient in crowded, confined indoor spaces such as workplaces, restaurants, parties, shopping centres, dorms, cruise ships and transport, according to the European Centre of Disease Control (ECDC) guidance on ventilation of indoor spaces. HVAC systems can also incorporate ionic purifiers, ozone generators, and other devices for cleaning air, it noted. Still, the risk of transmission in crowded indoor remains, which makes it vital to bundle prevention measures, such as wearing masks, social distancing, washing hands, and sanitising indoor spaces

Source: Hindustan Times July 11, 2020 18:30 UTC