Our Verdict
Coway Airmega 400 (White) Wins
It covers 1560 sq ft, significantly more than the 400(G)'s 650 sq ft. Opt for Coway 400(G) (Graphite) for its superior smoke CADR of 416 vs 328.
Spec Comparison
8 specs compared
| Specification |  |  |
|---|---|---|
| Price | $536 | $649 |
| Rating | 4.4(6.5k) | 4.4(6.5k) |
| Cadr Smoke | 416 | 328 |
| Coverage Sq Ft | 650 | 1560 |
| Noise Level db Min | 22 dB | 22 dB |
| Weight | 3.05 lbs | 24.7 lbs |
| Energy Star | Yes | Yes |
| Filter Type | True HEPA | True HEPA |
| Smart Sensor | Yes | Yes |
| Noise Level db Max | — | 52 dB |
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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.
Coway AP-2015F Airmega
- Covers 1,560 sq. ft. in 30 minutes.
- Filters 99.999% of 0.01-micron airborne particles.
- Reduces 99% of VOCs and odors effectively.
- Automatically adjusts fan speed to optimize air quality.
- Maximum noise level reaches 52 dB.
- Requires periodic filter replacement and cleaning.
- Unit weighs 24.7 lbs.
Frequently Asked Questions
Common questions about this comparison
Which Coway air purifier is better suited for very large rooms?
The Coway Airmega 400 (White) is ideal for very large rooms, covering 1560 sq ft. The Coway 400(G) (Graphite) is designed for rooms up to 650 sq ft, making it better for smaller large areas.
What's the main difference in smoke removal efficiency between these models?
The Coway 400(G) (Graphite) has a higher CADR for smoke at 416. The Coway Airmega 400 (White) has a smoke CADR of 328. This indicates the 400(G) is more efficient at removing smoke.
Is there a significant difference in noise levels between the two air purifiers?
Both models share a minimum noise level of 22 dB. The Airmega 400 (White) has a stated maximum noise level of 52 dB, while no maximum is specified for the 400(G) (Graphite).
Which model offers a better balance of coverage and particle removal for general use?
The Airmega 400 (White) excels in coverage (1560 sq ft). The 400(G) (Graphite) has a higher smoke CADR (416) but covers less area (650 sq ft). Your priority for space or specific particle type determines the better choice.
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