There is this startup which came up with the solution for the airborne problem. https://yourstory.com/2020/07/startup-bharat-kanpur-crestkiting-retail-air-puri

There is this startup which came up with the solution for the airborne problem. https://yourstory.com/2020/07/startup-bharat-kanpur-crestkiting-retail-air-purification https://yourstory.com/2020/07/startup-bharat-kanpur-crestkit...