NEW DELHI: The national capital once again woke up shrouded in a grey haze on Monday, with people gasping, coughing, and complaining. For the past few days, the air quality has plummeted into the "severe" zone, making morning walks into choking marathons. Meanwhile, videos flooding social media showed air purifiers at home coated in thick layers of brown and black dust — reflecting how toxic the air has become. In one viral clip, a man is seen opening his air purifier to reveal a filter coated in thick grime, prompting thousands of horrified comments. ALSO READ: Parents, kids, activists detained during India Gate 'clean-air protest' in Delhi Meanwhile, residents of Delhi have taken to the streets to protest. Earlier on Sunday, people gathered at India G

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