Air Purifiers for Home Face-off
Coway AirMega 250vsPhilips AC3421/13
Published: 6 November 2026Last updated: 6 November 2026
Detailed comparison to help you choose the right best air purifiers for home in india for your needs.
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AirMega 250 vs AC3421/13: Which Air Purifiers for Home Should You Buy?
Choose Coway AirMega 250 if:
- Largest coverage area (930 sq ft) ideal for living rooms/offices
- Fastest purification - cleans full area in 30 minutes
- Premium Hyper Captive Filtration for maximum efficiency
Choose Philips AC3421/13 if:
- Integrated NanoCloud humidification balances dry winter air without white dust or mist
- Dual-fan layout delivers 300 m³/h CADR with low 16.5 dB noise floor
- Comprehensive AeraSense monitoring displays humidity, temperature, and AQI
Coway AirMega 250 vs Philips AC3421/13 Specs Comparison
Showing all 13 specifications
| Specification | Coway AirMega 250 | Philips AC3421/13 |
|---|---|---|
| Coverage Area | 930 sq ft | 840 sq ft |
| CADR | 249 m³/h | 300 m³/h |
| Filter Stages | 3-stage | 3-stage |
| Filter Type | Pre-filter, Deodorization, True HEPA | NanoProtect HEPA, Active Carbon, NanoCloud Wick |
| Filtration Efficiency | 99.999% down to 0.01 microns | 99.97% down to 0.003 microns |
| Filter Life | 1 year | Up to 9,000 hours |
| Air Quality Monitoring | 24/7 pollution monitor | Real-time AQI display & Color Ring |
| Operating Modes | Smart, Rapid, 3-stage Manual | Auto+, Purify Only, Humidify & Purify, Sleep |
| Noise Level | 22-54 dB | 16.5 dB (sleep mode) |
| Power Consumption | 64W | Up to 43W |
| Replacement Filter Cost | ₹11,980 | ₹5,995 |
| Warranty | 7 years | 2 years |
| Manufacturer Origin | South Korea | India |
AirMega 250 vs AC3421/13: Pros & Cons
Coway AirMega 250
Pros
- Largest coverage area (930 sq ft) ideal for living rooms/offices
- Fastest purification - cleans full area in 30 minutes
- Premium Hyper Captive Filtration for maximum efficiency
- Longest warranty (7 years) shows manufacturer confidence
Cons
- Most expensive option at ₹59,900
- Lower CADR (249 m³/h) doesn't match premium price positioning
- High filter cost (₹11,980) adds to premium ownership expense
Philips AC3421/13
Pros
- Integrated NanoCloud humidification balances dry winter air without white dust or mist
- Dual-fan layout delivers 300 m³/h CADR with low 16.5 dB noise floor
- Comprehensive AeraSense monitoring displays humidity, temperature, and AQI
- Generous 3.2L water tank minimizes refill frequency
Cons
- Higher initial investment with ₹29,995 MRP
- Air CADR (300 m³/h) is moderate compared to dedicated single-function purifiers at this price
- Requires regular maintenance and descaling of the humidification wick
Full Category Comparison
Looking to compare all air purifiers for home models?
Check out our complete Best Air Purifiers for Home in India guide to see all 31 products compared side by side.
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