{"id":47925,"date":"2025-12-01T12:29:42","date_gmt":"2025-12-01T12:29:42","guid":{"rendered":"https:\/\/sochtimes.com\/2025\/12\/01\/are-you-using-the-right-air-purifier-doctor-sheds-light-on-common-mistakes-people-make-when-buying-one\/"},"modified":"2025-12-01T12:29:42","modified_gmt":"2025-12-01T12:29:42","slug":"are-you-using-the-right-air-purifier-doctor-sheds-light-on-common-mistakes-people-make-when-buying-one","status":"publish","type":"post","link":"https:\/\/sochtimes.com\/hi\/2025\/12\/01\/are-you-using-the-right-air-purifier-doctor-sheds-light-on-common-mistakes-people-make-when-buying-one\/","title":{"rendered":"Are you using the right air purifier? Doctor sheds light on common mistakes people make when buying one"},"content":{"rendered":"


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Most of North India, and the national capital New Delhi in particular, is battling a severe pollution<\/a> crisis with the AQI relentlessly reaching dangerous levels. Since not everyone has the option to relocate to another city for a few weeks, air purifiers come to the rescue. Air purifiers clean indoor air by trapping dust, pollen, smoke, and germs, which are known pollutants. Contrary to what people believe, our indoor air is no less toxic than the outside air, hence air purifiers are no longer a luxury, but rather a necessity. Dr Anshuman Kaushal, MD, recently posted a video on IG, and revealed that it is not the fancy lighting, display or remote, that decides how good an air purifier is, rather it only depends on few key things. He stresses four main points: CADR, True HEPA rating, room size match, and night-time noise. Poor choices waste money and leave air dirty, he adds. Good purifiers cut allergies, asthma attacks, and sick days. Let’s see how..What is CADR and why it matters<\/span>CADR means Clean Air Delivery Rate. It shows how fast a purifier cleans air of smoke, dust, and pollen. Measured in cubic feet per minute (CFM), higher numbers mean quicker cleaning. For example, a 300 CADR unit refreshes a room 4-5 times per hour. Dr Kaushal warns low CADR leaves pollutants hanging. AHAM tests give real numbers-look for the seal. Match CADR to room: 100-150 for small spaces, 300+ for large ones. Cheap models fake high CADR with weak filters.<\/p>\n

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Pollution: Choosing the right air purifier, key factors to consider<\/p>\n<\/div>\n<\/div>\n

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True HEPA Rating<\/span>True HEPA filters trap 99.97% of particles, as small as 0.3 microns-like virus bits or fine dust. The doctor says skip “HEPA-type” fakes; they catch far less pollutants. Real True HEPA has lab certification. Paired with high CADR, it removes 99% of allergens fast, and activated carbon adds odor control. Change filters yearly to keep efficiency. Studies show True HEPA cuts asthma symptoms by 30-50%. Dr Kaushal however, suggests to avoid units without this, as the air stays dirty.Match your room size<\/span>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. Wrong size wastes energy and money. Test air quality with built-in sensors.Night-time noise levels: Sleep without disturbance<\/span>Quiet operation matters for bedrooms, since you do not need just clean air, but peace and quiet to sleep well as well. Dr Kaushal picks units under 30 decibels (dB) on low, whisper quiet. High-speed fans hit 50+ dB, like a loud talker, ruining sleep. Look for “sleep mode” that drops noise. Reviews note real dB, not claims. Auto mode adjusts fan to air needs, staying silent when clean. Noisy purifiers often get turned off in the night, leaving dust overnight. Studies link poor sleep air to worse health. Hence, choose the right model.<\/p>\n

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Extra tips<\/span>Dr Kaushal urges checking ENERGY STAR for low power use. Auto sensors and apps track air quality. Avoid ozone makers-they harm lungs. Cost per clean air matters: high CADR saves filters long-term, and sees families get fewer coughs and better focus. Place unit away from walls for max airflow, and clean pre-filters monthly, and fully every 6-12 months for best results.<\/div>\n