Our Verdict
Coway 400(G) Wins
It offers significantly better air purification with 416 CADR smoke and 650 sq ft coverage, compared to Dyson's 73 sq ft. Choose Dyson HP10 if you need a combined air purifier, heater, and fan, not primary air cleaning.
Spec Comparison
8 specs compared
| Specification |  |  |
|---|---|---|
| Price | $536 | $362 |
| Rating | 4.4(6.5k) | 4.5(917) |
| Cadr Smoke | 416 | — |
| Coverage Sq Ft | 650 | 73 |
| 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 air purifier is better for large rooms?
The Coway 400(G) is superior for large rooms, covering up to 650 sq ft effectively with a CADR smoke of 416.0. The Dyson HP10 is designed for much smaller spaces, with only 73 sq ft coverage.
What's the main difference in air purification capacity?
The Coway 400(G) offers significantly higher purification capacity, with 650 sq ft coverage and a 416 CADR smoke rating. The Dyson HP10 only covers 73 sq ft and doesn't specify CADR smoke.
Is the Dyson HP10's higher cost justified?
The Dyson HP10 combines air purification with heating and cooling, justifying its cost if these multi-functions are a priority. However, for dedicated air purification, the Coway 400(G) offers superior performance for its likely price point.
How do their noise levels compare?
The Coway 400(G) specifies a minimum noise level of 22.0 dB, indicating quiet operation. The Dyson HP10 does not provide a minimum noise level in its specifications, so a direct comparison isn't possible from the data.
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