Delhi’s toxic winter air isn’t just a statistic — it’s the haze people breathe, the cough settling in their throats, and the silent threat growing year after year. In the middle of this smog-choked reality, a teenager decided he’d had enough.

What began as a personal battle for clean air turned into ‘Breathify’ — a homegrown innovation now helping thousands breathe easier, without the hefty price tag of traditional air purifiers.

In 2016, when he was just 14 years old, Delhi-based Krrish Chawla would wake up every winter with persistent breathing trouble.

“I was surrounded by purifiers because I used to fall sick so often,” says Krrish. “One day, out of curiosity, I opened one. It was........

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