In Delhi and many parts of north India the air quality has hit poor levels, and is expected to get even worse with winter and Diwali just a day away. To curb air pollution the government is taking efforts, entrepreneur and ex-IIT-Delhi student Prateek Sharma has come up with a short-term, cost-effective way to combat pollution - Nasofilters.This is the personal fight of Sharma against air pollution. His mother was an asthma patient, and throughout childhood, Sharma tried to find a product that wouldn't be uncomfortable like nose buds and face masks but would help filter out pollutants. Sharma's search for the perfect anti-air pollution product finally culminated in him founding a start-up, Nanoclean Global, in 2017.'Nasofilter’ is the first commercial product of Nanoclean. Nasofilters cost a mere Rs. 10 per piece, and is the world's first non-inserted, hypo-allergenic and self-adhering nanotechnology-based respiratory disposable nasal filter. Using affordable bio-safe nanofibers and proprietary polymer technology is created by an IIT-Delhi team;it filters out 95% of pollutants in air. All users have to do is cover their nostrils with the near-transparent filters.In the market pollution filtering devices are relatively expensive. Sharma's solution, on the other hand, is neither conspicuous, nor expensive, and therefore carries the potential to change how India and the world use respiratory protection devices to combat air pollution.