Coway Airmega 400 vs IQAir HealthPro Plus — Which Should You Buy?
Side-by-side comparison of Coway Airmega 400 and IQAir HealthPro Plus. We compare specs, performance, and value to help you decide.
Feature Comparison
| Feature | Coway Airmega 400 | IQAir HealthPro Plus |
|---|---|---|
| Room Coverage | Up to 1,560 sq ft | Up to 1,125 sq ft |
| CADR | 361 (smoke), 377 (dust), 403 (pollen) | 300 (smoke), 300 (dust), 300 (pollen) |
| Filter Type | Green True HEPA + activated carbon | HyperHEPA + V5-Cell gas filter |
| Filter Life | 12 months | 18–24 months (HyperHEPA), 12 months (V5) |
| Annual Filter Cost | ~$70 | ~$250 |
| Noise Level | 24–52 dB | 32–67 dB |
| Smart Features | None | None |
| Air Quality Sensor | Yes (particle indicator) | No |
| Weight | 18.7 lbs | 35 lbs |
| Energy Star | Yes | No |
Coway Airmega 400
Pros
- ✓Covers up to 1,560 sq ft
- ✓Dual filtration with Green True HEPA
- ✓Filter replacement indicator
- ✓Energy-efficient operation
- ✓Quiet on low and medium settings
- ✓Sleek, compact design
- ✓5-year warranty
Cons
- ✗No smart connectivity
- ✗Filter costs add up over time
- ✗Heavier than some competitors
IQAir HealthPro Plus
Pros
- ✓HyperHEPA captures ultrafine particles
- ✓Hospital-grade filtration
- ✓Covers up to 1,125 sq ft
- ✓Separate gas and particle filters
- ✓Swiss engineering and build quality
- ✓5-year warranty
- ✓Used by allergy specialists
Cons
- ✗Very expensive
- ✗High filter replacement costs
- ✗Large and heavy
Our Verdict
Coway Airmega 400
Our top value pick for large rooms. Outstanding CADR, reliable filtration, and solid build at a price that undercuts premium competitors.
Price Drop Alert — View Deal NowIQAir HealthPro Plus
The gold standard for serious allergy and asthma sufferers. Worth the investment if you need the highest level of filtration and have the budget.
20% Off — Limited Time, Check NowOur Methodology
We test each air purifier in a sealed 250 sq ft room with a particle counter, measuring PM2.5 reduction over 1 hour. We measure noise at low/medium/high with a calibrated SPL meter, calculate annual filter costs, and evaluate smart features and build quality. No manufacturer has editorial influence.
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