Our Verdict
Coway 250 Wins
It offers superior purification with 248 CADR for smoke and covers 387.5 sq ft, significantly more than Dyson's 101 sq ft. Choose Dyson if you prioritize a combined air purifier and cooling fan.
Spec Comparison
6 specs compared
| Specification |  |  |
|---|---|---|
| Price | $315 | $458 |
| Rating | 4.4(7.8k) | 4.2(615) |
| Cadr Smoke | 248 | — |
| Coverage Sq Ft | 387.5 | 101 |
| Noise Level db Min | — | — |
| 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
- Covers 387 sq ft for 5 air changes per hour.
- Removes 99.999% of 0.01-micron particles.
- Reduces 99% of volatile organic compounds.
- Automatically adjusts fan speed to air quality.
- Requires periodic replacement of internal filters.
- Advertised coverage exceeds typical 5 ACH standard.
Frequently Asked Questions
Common questions about this comparison
Which air purifier is better for a large living space?
The Coway 250 is superior for large rooms, effectively purifying up to 387.5 sq ft with a smoke CADR of 248.0. The Dyson TP09 is designed for much smaller areas, only covering 101 sq ft, making it less suitable for spacious environments.
What is the main difference in air cleaning capacity (CADR)?
The Coway 250 boasts a smoke CADR of 248.0, indicating robust particle removal. The Dyson TP09 does not specify its CADR, making a direct comparison of raw air cleaning speed challenging. However, Coway's coverage is significantly higher.
Is there a difference in long-term filter maintenance costs?
The Coway 250 includes a washable pre-filter, which can reduce recurring costs by extending the life of other filters. While both require periodic internal filter replacement, Coway's washable pre-filter offers a cost-saving advantage.
Which product offers more features beyond air purification?
The Dyson TP09 functions as both an air purifier and a cooling fan, offering dual utility. The Coway 250 focuses solely on advanced air purification with smart modes and an AQI display, but does not provide active cooling.
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