Two Delhi Students Turn A Fan Into An Air Purifier. Cost: Rs 140.
The Take
Buying an air purifier for every classroom costs a lot. Two Delhi students, Krish Aggarwal and Samarth Meattle, used what classrooms already have: the fan. Their filter fits over the grille and traps fine dust as the fan spins. One costs about Rs 140. They give them to schools for free. Krish just won the 2026 Diana Award for it. Same old fan. Cleaner air.
The Wire
Krish Aggarwal of Sanskriti School, New Delhi, has won the 2026 Diana Award for Project Vayu, which he started with his classmate Samarth Meattle. Its electrostatically charged filter fits over an ordinary classroom fan and traps PM2.5 particles. One unit costs about Rs 140. The project gives the units to schools for free and says over 10,000 students in Delhi schools have benefited.
The receipts
Source: The Daily Jagran