Air Purifiers for Home Face-off
Coway AirMega 100vsPhilips 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 100 vs AC3421/13: Which Air Purifiers for Home Should You Buy?
Choose Coway AirMega 100 if:
- Exceptional 0.01-micron filtration precision outclasses typical 0.3-micron HEPA
- Compact 360° cylindrical footprint fits easily on floors or side tables
- Vacuumable pre-filter saves money and simplifies routine maintenance
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 100 vs Philips AC3421/13 Specs Comparison
Showing all 13 specifications
| Specification | Coway AirMega 100 | Philips AC3421/13 |
|---|---|---|
| Coverage Area | 405 sq ft | 840 sq ft |
| CADR | 240 m³/h | 300 m³/h |
| Filter Stages | 3-stage | 3-stage |
| Filter Type | Vacuumable Pre-filter, Activated Carbon, 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 | Real-time PM2.5 sensor with 4-color LED | Real-time AQI display & Color Ring |
| Operating Modes | Auto, Sleep, Manual (3 Speeds) | Auto+, Purify Only, Humidify & Purify, Sleep |
| Noise Level | 20-50 dB | 16.5 dB (sleep mode) |
| Power Consumption | 25W | Up to 43W |
| Replacement Filter Cost | ₹3,499 | ₹5,995 |
| Warranty | 5 yrs motor + 1 yr electrical (extend to 7 yrs) | 2 years |
| Manufacturer Origin | South Korea | India |
AirMega 100 vs AC3421/13: Pros & Cons
Coway AirMega 100
Pros
- Exceptional 0.01-micron filtration precision outclasses typical 0.3-micron HEPA
- Compact 360° cylindrical footprint fits easily on floors or side tables
- Vacuumable pre-filter saves money and simplifies routine maintenance
Cons
- Coverage capped at ~405 sq ft, best suited for single rooms rather than entire homes
- Annual filter replacement costs approximately ₹3,499
- No Wi-Fi or mobile app connectivity on this model
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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