Air Purifiers for Home Face-off
Coway AirMega 50vsPhilips 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 50 vs AC3421/13: Which Air Purifiers for Home Should You Buy?
Choose Coway AirMega 50 if:
- Extremely energy-efficient 14W power draw keeps electricity bills negligible
- Near-silent 18.4 dB operation makes it virtually inaudible in bedrooms
- Affordable entry price under ₹10,000 for trusted Korean Coway quality
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 50 vs Philips AC3421/13 Specs Comparison
Showing all 13 specifications
| Specification | Coway AirMega 50 | Philips AC3421/13 |
|---|---|---|
| Coverage Area | 270 sq ft | 840 sq ft |
| CADR | 120 m³/h | 300 m³/h |
| Filter Stages | 3-stage | 3-stage |
| Filter Type | Pre-filter, Deodorization Filter, HyperCaptive 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 LED color ring | Real-time AQI display & Color Ring |
| Operating Modes | Auto, Sleep, Manual (3 Speeds) | Auto+, Purify Only, Humidify & Purify, Sleep |
| Noise Level | 18.4-44 dB | 16.5 dB (sleep mode) |
| Power Consumption | 14W | Up to 43W |
| Replacement Filter Cost | ₹2,999 | ₹5,995 |
| Warranty | 5 yrs motor + 1 yr electrical | 2 years |
| Manufacturer Origin | South Korea | India |
AirMega 50 vs AC3421/13: Pros & Cons
Coway AirMega 50
Pros
- Extremely energy-efficient 14W power draw keeps electricity bills negligible
- Near-silent 18.4 dB operation makes it virtually inaudible in bedrooms
- Affordable entry price under ₹10,000 for trusted Korean Coway quality
Cons
- Modest CADR (120 m³/h) is limited to smaller rooms and personal spaces
- Coverage limited to ~270 sq ft, unsuitable for large living rooms
- Lacks digital numerical PM2.5 display, relying solely on an LED ring
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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