Did you know, India is the world's second most polluted country? Fine particulate air pollution (PM2.5) shortens an average Indian's life expectancy by 5.3 years, relative to what it would be if the World Health Organization (WHO) guideline of 5 micrograms per cubic meter was met, states the Air Quality Life Index (AQLI) produced by the Energy Policy Institute at the University of Chicago (EPIC). Breathing toxic air can have varying health impacts - ranging from cold and cough to severe respiratory disorders. Dr Sachin D, Consultant - Interventional Pulmonology, Critical Care & Sleep Medicine, Fortis Hospital shared the impact of pollution and ways to protect oneself from it.