Are you using right air purifier? Doctor sheds light on common mistakes people make when buying one

Your room size decides if the purifier will work, or not. Dr Kaushal explains – multiply room square footage by 2-4 for needed CADR. A 200 sq ft bedroom hence, needs 400-800 CADR. Check maker’s room size chart-it is usually based on 8-foot ceilings. Open spaces or high ceilings need more power