NDTV·India

Delhi Student Wins Diana Award for Cheap Air Filter

Summarised by Spiced Kopi · 11 November 2026, 05:06 UTC ·10 sec listen

Delhi student Krish Aggarwal won the Diana Award for creating an affordable air filter. The system costs about 140 rupees and cuts harmful fine particle pollution by more than 90 percent, offering a low-cost way to improve air quality.

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