Air Purifiers for Home Face-off
Coway AirMega 150vsPhilips 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 150 vs AC3421/13: Which Air Purifiers for Home Should You Buy?
Choose Coway AirMega 150 if:
- Best-in-class filtration at 0.001 microns (10x better than standard)
- Patented Anti-Virus technology kills pathogens instead of just trapping
- 6,000+ monthly sales shows market leadership
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 150 vs Philips AC3421/13 Specs Comparison
Showing all 13 specifications
| Specification | Coway AirMega 150 | Philips AC3421/13 |
|---|---|---|
| Coverage Area | 355 sq ft | 840 sq ft |
| CADR | 300 m³/h | 300 m³/h |
| Filter Stages | 3-stage | 3-stage |
| Filter Type | Pre-filter, Urethane Carbon, Anti-Virus True HEPA | NanoProtect HEPA, Active Carbon, NanoCloud Wick |
| Filtration Efficiency | 99.99% down to 0.001 microns | 99.97% down to 0.003 microns |
| Filter Life | 8500 hrs (1.5-2 years) | Up to 9,000 hours |
| Air Quality Monitoring | Real-time (4-color LED) | Real-time AQI display & Color Ring |
| Operating Modes | Smart Auto, Manual | Auto+, Purify Only, Humidify & Purify, Sleep |
| Noise Level | 22-49 dB | 16.5 dB (sleep mode) |
| Power Consumption | 35W | Up to 43W |
| Replacement Filter Cost | ₹8,980 | ₹5,995 |
| Warranty | 5 yrs motor + 1 yr electrical (extend to 7 yrs) | 2 years |
| Manufacturer Origin | South Korea | India |
AirMega 150 vs AC3421/13: Pros & Cons
Coway AirMega 150
Pros
- Best-in-class filtration at 0.001 microns (10x better than standard)
- Patented Anti-Virus technology kills pathogens instead of just trapping
- 6,000+ monthly sales shows market leadership
- Exceptional 7-year warranty (5yr motor + 1yr electrical, extendable to 7yrs)
Cons
- Premium pricing at ₹34,900
- Filter replacement cost of ₹8,980 higher than budget options
- Coverage limited to 355 sq ft suits only small-medium rooms
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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