- By Alex David
- Wed, 22 Oct 2025 03:41 PM (IST)
- Source:JND
North India witnesses a familiar but fatal crisis every winter — enveloping air pollution. With AQI levels in Delhi-NCR already exceeding 400, since the air is filled with smog from stubble burning, industrial emissions and vehicular pollution. You can only do so much about what hangs in the air outside, but you have a lot of control over cleaning up the air inside. The smartest way to do that? Start With an Air Purifier You’d want to make sure it’s coming from a reputable brand.
5 Best Air Purifiers This Winter
Here’s a closer look at five of the most effective air purifiers you can purchase this season — what they provide, how they function and what makes each worth considering for your home or office.
1. Xiaomi Smart Air Purifier 4
Suitable for medium-sized to large rooms, this purifier has a 360° air intake and 3-stage filtration system that can remove up to 99.99% of particles as small as 0.1 microns. At a coverage rate of 500 sq. ft., it's perfect for bedrooms and small dens. It’s also smart enabled, so you can remotely check air quality or schedule cleaning cycles via your phone. High CADR (Clean Air Delivery Rate) removes more air pollutants and delivers fresh air faster, is 100% ozone-free, and does not use UV or ions, which produce trace amounts of measurable ozone harmful to the human body.
Why it’s great: Small, inexpensive and incredibly efficient for its size — perfect for a city apartment.
2. Honeywell Air Purifier
If you’d prefer a more powerful option for bigger spaces (up to 853 sq. ft.), Honeywell’s purifier is one of the best options to consider. It features a 4-layer filtration process – Pre-filter, H13 HEPA filter, Nano Silver Ion layer and Activated Carbon filter – for clearing out 99.99% of micro-allergens, viruses and odours. Thanks to this 5-Micron Filtration the smallest of contaminants, harmful bacteria and volatile organic compounds (VOC’s) are trapped in a consistent manner.
Why it’s great: Best for large halls or offices where multiple people are breathing the same air in close quarters.
3. Philips AC4221 Smart Air Purifier
A Popular Pick Known for it”s efficiency, Philips delivers 700 sq. ft with the 4-step NanoProtect filtration which has an accuracy of a filter-infiltration scale between 1-3 micrometer, that captures particles up to 100X smaller than PM2. 5, allergens, and pet dander. Smart control sensor screens real-time pollution levels and automatically adjusts fan continuously.
What we like: Featuring an energy-saving mode, and it comes with a responsive air quality sensor ideal for leaving running.
4. Qubo Smart Air Purifier Q1000
Qubo joins the smart automation with air purification regarding the entry. Its QSensAI technology effectively registers and reacts to changes in air quality. Its 4-stage filter system works to eliminate smoke, pet hair, cooking odours and pollen with three distinct settings. The contraption pairs with your smartphone to provide real-time monitoring and control of the air.
Why we like it: Ideal for tech lovers looking for a level of command to allow smart automation and reduce their manual inputs.
5. Sharp Air Purifier
Sharp A comparatively new player in the air purifier game, Sharp has its own brand of technology that it calls Plasmacluster ion. With its dual purification system, the airborne bacteria and viruses get neutralised, keeping the air in your home clean and healthy.
Why it’s great: Great for people who suffer from allergies or for households with children and older adults because it possesses antibacterial properties.
Final Word
In the north of India, where the air crisis is worsening by the day, an air purifier is not a luxury it’s a necessity. The Xiaomi and Philips models are easy on the wallet with a good feature set centering around smart features, Honeywell and Sharp lead in coverage area while having deep purification. Qubo, on the other hand, is for them who have a liking towards smart home integration.
Whichever you decide on, be sure to change filters regularly, close windows when AQI is particularly high and incorporate plants such as peace lilies or areca palms to further enhance indoor air quality. Clean air isn’t a nice-to-have — it’s essential for our long-term health.