India, Dec. 20 -- Air pollution doesn't announce itself anymore. It settles quietly into homes through open windows, AC vents, dusty sofas and even freshly washed curtains. If you live in an Indian city, you already know the feeling, irritated eyes by evening, heavier breathing at night, dust returning hours after cleaning. That's why air purifiers have shifted from "nice to have" gadgets to everyday appliances.

Brands like Dyson approach the problem with sealed HEPA systems and airflow engineering, while Honeywell focuses on large-room coverage and real-time PM2.5 monitoring. Winix uses medical-grade filtration with PlasmaWave for homes battling allergies, and Levoit's compact models quietly handle bedrooms and work-from-home corners. S...