Philips AC0920 Smart Air Purifier

Why it's our Starter pick

• Its 250 m³/h CADR and HEPA NanoProtect filter suit a room of about 300 sq ft, per Philips India.
• The listing also quotes 320 sq ft on the GB/T standard and 700 sq ft on NRCC, so compare by CADR.

Watch out: A replacement filter costs about ₹2,150.