Name: COWAY Air Purifiers for Home Large Room Up to 3,120ft², 2 Sets of Washable Pre-Filters and True HEPA Filters for Smoke, Allergies, Pet Dander, Odor...
Brand: Coway
SKU: B0722YZ1R1
Price: 649 USD
Availability: InStock
Rating: 4.4 (6465 reviews)

Our Verdict

Coway Airmega 400 (White) Wins

Coway AP-2015F Airmega 400 Smart Air Purifier (Covers 1,560 sq. ft.), True HEPA Air Purifier with Smart Technology, White 400 WHITE - High-End Air Purifiers

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.

$650Buy on Amazon

Bottom Line: Coway Airmega 400 (White) is the better choice. It covers 1560 sq ft, significantly more than the 400(G)'s 650 sq ft.

Key Differences

The most significant spec differences at a glance

416

Cadr Smoke

27% more

328

650

Coverage Sq Ft

58% less

1,560

3.05

Weight

88% less

24.7

Advantages

Where each product wins

Coway

Cadr Smoke: 27% higher (416.0 vs 328.0)
Weight: 88% lower (3.05 vs 24.7)

Coway

Coverage Sq Ft: 58% higher (650.0 vs 1560.0)

Who Should Buy Which?

Find the right product for your needs

Buy Coway if...

COWAY Air Purifiers for

If you need top-tier air purification for a medium-sized room (up to 650 sq ft) and prioritize rapid removal of smoke and allergens, Product A (Graphite) is ideal. Its CADR Smoke of 416.0 ensures quick cleaning, while the 22.0 dB minimum noise level provides quiet operation. It's also incredibly lightweight at 3.05 lbs, making it easy to move between rooms. Perfect for bedrooms or smaller living areas, offering excellent performance.

Buy Coway if...

Coway AP-2015F Airmega 400

For those with expansive open-plan homes or very large rooms (up to 1,560 sq ft), Product B (Airmega 400 White) is the superior choice. It offers unmatched coverage, effectively filtering 99.999% of particles, VOCs, and odors across vast spaces. Prioritize this model if you need a powerful, smart unit that automatically adjusts to maintain optimal air quality throughout your largest living areas, despite its higher 24.7 lbs weight.

Spec Comparison

8 specs compared

Specification	Coway Air Purifiers for	Coway AP-2015F Airmega 400
Price	$649	$650
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

Pros

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.

Cons

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

Pros

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.

Cons

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.