Our Verdict
Coway 400 GRAPHITE Wins
It offers superior performance with a CADR of 416.0 and covers 650 sq ft compared to Dyson's 290 sq ft. Choose Dyson if its specific air purification and fan features are more critical despite less data.
Spec Comparison
8 specs compared
| Specification |  |  |
|---|---|---|
| Price | $536 | $400 |
| Rating | 4.4(6.5k) | 4.4(170) |
| Cadr Smoke | 416 | — |
| Coverage Sq Ft | 650 | 290 |
| Noise Level db Min | 22 dB | — |
| Weight | 3.05 lbs | — |
| Energy Star | Yes | — |
| Filter Type | True HEPA | — |
| Smart Sensor | Yes | — |
| Filter Cost Yearly | — | — |
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Pros & Cons
Quick overview of strengths and weaknesses
Coway Air Purifiers
- Removes 99.999% of 0.01-micron particles.
- Covers 780 sq ft with 4 air changes per hour.
- Smart Mode adjusts fan speed based on air quality.
- Eco Mode shuts off fan when air is clean.
- Stated 3,120 sq ft coverage misleading for 4 ACH.
- True HEPA filters require periodic replacement.
- No remote control listed in features.
Frequently Asked Questions
Common questions about this comparison
Which is better for large rooms?
The Coway 400 GRAPHITE is significantly better for large rooms, covering up to 650 sq ft effectively. The Dyson TP7A only covers 290 sq ft, making it more suitable for smaller spaces.
What's the main difference in air purification power (CADR)?
The Coway 400 GRAPHITE has a smoke CADR of 416.0, indicating strong air cleaning capability. The Dyson TP7A's CADR is not specified in the provided data, so Coway offers clearer performance metrics.
Which air purifier is quieter?
The Coway 400 GRAPHITE operates at a minimum noise level of 22.0 dB, offering a quiet experience. The minimum noise level for the Dyson TP7A is not specified in the available information.
Does either product have smart features?
Yes, the Coway 400 GRAPHITE includes Smart Mode, which adjusts fan speed based on air quality, and Eco Mode. Smart features for the Dyson TP7A are not detailed in the provided information.
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