Answer first: If you live in Delhi right now, an air purifier is no longer a luxury. With Delhi’s AQI reaching 451 in the severe zone on 3 November 2026, indoor air can stay unhealthy even with doors and windows closed. A good HEPA air purifier removes PM2.5, dust, smoke, pollen and allergens, and it is one of the simplest ways to breathe cleaner air at home during the Flipkart Big Bang Diwali Sale 2026, when prices on top models are sharply lower.
Below are 5 real, currently listed air purifiers on Flipkart, chosen for different room sizes and budgets. Prices are as shown on Flipkart on 4 November 2026 and may change during the sale, so check the store page before you buy.
1. Mi Smart Air Purifier 4 Lite
Mi Smart Air Purifier 4 Lite
Price: ₹10,990 (MRP: ₹14,999)
Best for medium to large rooms, up to about 640 sq. ft. It offers 360 m3/hr CADR, a 3-stage high-efficiency filter, app and voice control, and a real-time filter usage and AQI monitor, so you can see exactly how hard it is working on a high-pollution day.
2. Honeywell Air Touch V1
Honeywell Air Touch V1
Price: ₹5,149 (MRP: ₹9,999)
Best for small bedrooms up to about 235 sq. ft. Its 3-stage filtration with a 3-in-1 filter, including an H13 HEPA filter, pre-filter and activated carbon, targets pollutants, allergens, pet dander, smoke, dust and pollen at a very affordable sale price.
3. Philips AC0920/60 Air Purifier
Philips AC0920/60 Air Purifier
Price: ₹9,949 (MRP: ₹9,995)
Best for small rooms up to about 30 sq. m (690 sq. ft. as listed). With 250 m3/h CADR, HEPA NanoProtect filtration, 99.99% allergen removal as listed, and an AeraSense PM2.5 sensor, it is a compact, trusted choice for a bedroom or study.
4. CUCKOO Respure Air Purifier
CUCKOO Respure Air Purifier
Price: ₹14,160 (MRP: ₹34,990)
Best for large rooms up to about 570 sq. ft., which it cleans in about 15 minutes as listed. Its H-13 True HEPA filtration, plus activated carbon, pre-filter and deodorization filters, and an extra filter set in this listing, make it a strong pick for Delhi’s severe pollution days.
5. Eureka Forbes AP 150 Air Purifier
Eureka Forbes AP 150 Air Purifier
Price: ₹4,999 (MRP: ₹9,000)
Best budget pick for a small room. Its 3-stage HEPA filtration with Surround 360-degree air technology, activated carbon, pre-filter and ionizer filter, in a portable design, makes it an easy first air purifier for a bedroom or a child’s room.
Quick Comparison
| Air Purifier | Price on 4 Nov 2026 | Best For |
|---|---|---|
| Mi Smart Air Purifier 4 Lite | ₹10,990 | Medium to large rooms, app control |
| Honeywell Air Touch V1 | ₹5,149 | Small bedrooms, value for money |
| Philips AC0920/60 | ₹9,949 | Small rooms, PM2.5 sensing |
| CUCKOO Respure | ₹14,160 | Large rooms, fast cleaning |
| Eureka Forbes AP 150 | ₹4,999 | Budget first purchase, small rooms |
Buying Guide: How to Choose an Air Purifier
Room size: Match the purifier’s coverage to your room. A purifier rated for a much smaller room will struggle on severe-AQI days, while an oversized one costs more to run.
HEPA filter: Look for a True HEPA or H13 HEPA filter, which is designed to capture very fine particles including PM2.5. A pre-filter and activated carbon filter help with dust and odours.
CADR: Clean Air Delivery Rate shows how much clean air the purifier delivers. Higher CADR means faster cleaning, which matters when outdoor pollution is severe.
Filter replacement cost: Check how often the filter needs changing and what a replacement costs, because this is the main running cost after purchase.
Noise: For a bedroom, check the noise level on sleep or low mode. A quiet purifier is much easier to run all night, every night, through the pollution season.
Verdict
For most Delhi homes this Diwali sale, the Mi Smart Air Purifier 4 Lite offers the best balance of coverage, smart features and price, while the Honeywell Air Touch V1 is the best value pick for a small bedroom. If you need to cover a large living room quickly, go for the CUCKOO Respure, and if budget is the priority, the Eureka Forbes AP 150 is the lowest-cost way to start breathing cleaner air at home.