Interactive Air Purifier Buying Checklist India | indoorair.guide

Independent scored checklist for buying an air purifier in India. Four hard vetoes — ioniser or UV-C, no activated carbon, "HEPA-type" media, and no OEM-published CADR — mark a model "Do not buy" outright. Everything else is scored out of 19 points (20 with the optional in-stock point) across CADR, HEPA grade, carbon mass, noise, filter cost, sensors, and smart features.

• CADR sized to 5 ACH plus a 20–30% buffer for Indian conditions
• HEPA grade — H13 minimum, glass-fibre preferred over electrostatic
• Activated carbon mass in grams (not just "carbon layer")
• Noise floor on lowest fan speed (target ≤30 dB for bedrooms)
• Annual filter cost and Indian service-centre availability
• Four hard vetoes: ioniser or UV-C, no carbon, "HEPA-type" media, no OEM CADR
• Scored out of 19 points, or 20 with the optional in-stock point