As India's capital of New Delhi prepares for winter — and the accompanying season of acrid smog — the government is promoting a motorcycle helmet fitted with filters and a fan at the back that it says can remove 80% of pollutants.
State agencies have pumped thousands of dollars into Shellios Technolabs, a startup whose founder Amit Pathak began work on the helmet, which he calls the world's first of its kind, in a basement in 2016.
That was the year of the first headlines about the filthy air that makes it nearly impossible to breathe in New Delhi from mid-December to February, with the heavy cold trapping dust, vehicle emissions and smoke from burning crop waste in nearby states.
With your current subscription plan you can comment on stories. However, before writing your first comment, please create a display name in the Profile section of your subscriber account page.