Praan, a venture-backed deeptech startup based in San Francisco, California and Mumbai, has built the world’s most advanced air purification technology. Its patent-pending technology for filter-less capture of particulates and carbon dioxide from ambient air has brought clean air within reach for more than 100 million low-wage workers in Indian factories. Praan’s innovation has the potential to improve the lives of these blue-collar workers, many of whom suffer from respiratory issues due to prolonged exposure to polluted