Every year, the air in Delhi-NCR and much of North India turns heavy after Diwali. Firecrackers, stubble smoke, and cold, still air keep fine dust close to the ground.
The best time to buy a purifier is now, before stock runs low and prices rise.
What to Check Before You Buy
Look for three things.
1. A true HEPA or H13 HEPA filter, which catches tiny PM2.5 particles.
2. An activated carbon layer to handle smoke and smell.
3. A CADR (Clean Air Delivery Rate) that suits your room size, since a higher CADR cleans faster.
NOTE: Prices below were seen on the listings in late September. They change often, so check the page before you pay.
Here is a list of air purifiers that can be helpful for the upcoming smog season.
Honeywell Air Touch V5
The V5 has four-stage filtration with an H13 HEPA filter, covers 589 sq ft, and offers WiFi app and voice control. Its filters are rated for up to 9,000 hours.
It was listed near INR 10,000 on Honeywell’s own site, far below its INR 22,999 MRP. Delhi-NCR buyers often praise it for handling heavy smog.
Price: INR 11,490
Xiaomi Smart Air Purifier 4
This model has a CADR of 387 m³/h, True HEPA filtration, and covers 516 sq ft. It works well in living rooms and open spaces.
It has app and voice control. Its price has swung a lot, from about INR 14,000 to INR 18,000, so watch for a deal.
Price: INR 18,999
Philips AC0920
The AC0920 shows real-time AQI, covers 300 sq ft, and has a filter life of up to 9,000 hours.
It is light, compact, and quiet, which suits sleeping rooms.
Price: INR 8,410.
Honeywell Air Touch V1
The V1 has a CADR of 152 m³/h, covers up to 235 sq ft, and uses a three-stage system with H13 HEPA and carbon.
It suits small bedrooms, study rooms, or a child’s room.
Price: INR 5,159.
Simple Tips for Diwali Week
Match the purifier to your room. A small unit in a big hall will not help much.
For better results, keep doors and windows closed while it runs. Place it away from walls and curtains so air can flow freely.
Run it on auto mode during the day and on low speed at night. Start a few days before Diwali, so the room is already clean when smoke arrives.
The main thing that needs attention is to wash the pre-filter as the manual says. Change the main filter on time, because a clogged filter cleans less.
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Ready, Set, Purify
For most homes, the Honeywell Air Touch V5 gives the best mix of coverage and value.
Choose the Xiaomi 4 for large halls, the Philips AC0920 for bedrooms, the Honeywell V1 for tight budgets.
Order early, and your family can breathe easier when the smog arrives.
FAQs
Best air purifier for smog season?
For most Indian homes, the Honeywell Air Touch V5 is a strong pick because it has an H13 HEPA filter, covers up to 589 sq ft, and costs less than many rivals.
How to decide which air purifier to buy?
Pick one with a True HEPA filter and a carbon layer, then check that its coverage area and CADR match your room size.
What time of year do air purifiers go on sale?
The best deals usually come during the big festive sales on Amazon and Flipkart before Diwali, and again in winter and around Republic Day.
How to choose the right air purifier for your home in 2026?
Measure your room, choose a purifier rated for that size, and look at noise level, filter cost, and warranty before you buy.
