The architects behind these 18-foot-tall filtration devices believe their project can be scaled up to clean big public spaces, neighborhoods and even entire cities.
At a park in one of the world’s most polluted cities, a sleek filtration “tower” has been quietly purifying the surrounding air since last summer. Dubbed Verto, the 5.5-meter-tall device reduces levels of nitrogen dioxide and dangerous fine particles in New Delhi’s Sunder Nursery by filtering 600,000 cubic meters of air a day — which is equivalent to the volume of 273 hot air balloons.
“It was a back-and-forth process, in terms of trying to get the optimum shape that would increase the wind speed and the surface area.” Designed as ‘a mass product’ In 2019 alone, air pollution is thought to have caused nearly 1.6 million deaths in India, according to a study in medical journal The Lancet. New Delhi is regularly shrouded in smog, with vehicle emissions, crop-burning and coal-fired power plants all contributing to the city’s declining air quality.
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