Air Purifiers for Home Face-off
Dyson Big + QuietvsCoway AirMega 350
Published: 27 October 2026Last updated: 27 October 2026
Detailed comparison to help you choose the right best air purifiers for home in india for your needs.
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Big + Quiet vs AirMega 350: Which Air Purifiers for Home Should You Buy?
Choose Dyson Big + Quiet if:
- Massive coverage area up to 1,076 sq ft suitable for expansive living spaces
- Cone aerodynamics projects clean air up to 10 meters across large rooms
- Fully sealed HEPA H13 system ensures trapped pollutants cannot escape
Choose Coway AirMega 350 if:
- High CADR (713 m³/h) purifies large rooms and hall areas rapidly
- Captures particles down to 0.01 microns, 10x finer than standard HEPA
- Quiet 21.6 dB sleep mode with auto light-dimming sensor
Dyson Big + Quiet vs Coway AirMega 350 Specs Comparison
Showing all 13 specifications
| Specification | Dyson Big + Quiet | Coway AirMega 350 |
|---|---|---|
| Air Quality Monitoring | Real-time LCD (PM2.5, PM10, NO2, VOCs) | Real-time numeric AQI + 4-color LED (PM1.0, PM2.5, PM10) |
| CADR | 300 m³/h | 713 m³/h |
| Coverage Area | 1,076 sq ft | 980 sq ft |
| Filter Life | Up to 5 years (HEPA) / 2 years (Carbon) | 1 to 2 years (8,500 hrs) |
| Filter Stages | 3-stage (HEPA H13) | 3-stage |
| Filter Type | HEPA H13 Filter + Activated Carbon (K-Carbon) | Vacuumable Pre-filter, Activated Carbon, Green True HEPA |
| Filtration Efficiency | 99.95% down to 0.1 microns | 99.999% down to 0.01 microns |
| Manufacturer Origin | Malaysia | South Korea |
| Noise Level | Up to 56 dB | 21.6-52 dB |
| Operating Modes | Auto, Breeze, Diffuse, 10 Fan Speeds | Auto, Sleep, Turbo, Eco |
| Power Consumption | 50W | 65W |
| Replacement Filter Cost | ₹7,900 | ₹9,990 |
| Warranty | 2 years | 5 yrs motor + 1 yr electrical (extend to 7 yrs) |
Big + Quiet vs AirMega 350: Pros & Cons
Dyson Big + Quiet
Pros
- Massive coverage area up to 1,076 sq ft suitable for expansive living spaces
- Cone aerodynamics projects clean air up to 10 meters across large rooms
- Fully sealed HEPA H13 system ensures trapped pollutants cannot escape
- Comprehensive smart control via MyDyson app and voice assistants
Cons
- Premium price point of ₹68,900
- Substantial unit size and floor footprint
Coway AirMega 350
Pros
- High CADR (713 m³/h) purifies large rooms and hall areas rapidly
- Captures particles down to 0.01 microns, 10x finer than standard HEPA
- Quiet 21.6 dB sleep mode with auto light-dimming sensor
- Coway's robust 7-year motor warranty
Cons
- High replacement filter cost
- Substantial cylindrical body takes up noticeable floor space
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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