Two Delhi school students, who have been recognised on the 2026 Diana Award Roll of Honour, have developed a low-cost filter that turns ordinary classroom fans into air purifiers, aiming to make cleaner air accessible to children in schools with limited resources.

Krish Aggarwal, a Class 12 student at Sanskriti School and Samarth Meattle, a Class 11 student at Vasant Valley School, co-founded 'Project Vayu' to address indoor air pollution.