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 400(G) Wins

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, AQI, Auto & Sleep Mode, Timer, 5yr Warranty, 400(G) 400 GRAPHITE - High-End Air Purifiers

It offers superior CADR (416 vs 76) and covers larger rooms (650 sq ft vs 400 sq ft). Choose Dyson for integrated cooling and advanced app/voice smart controls.

$649Buy on Amazon

Bottom Line: Coway 400(G) is the better choice. It offers superior CADR (416 vs 76) and covers larger rooms (650 sq ft vs 400 sq ft).

Key Differences

The most significant spec differences at a glance

416

Cadr Smoke

447% more

650

Coverage Sq Ft

62% more

400

Advantages

Where each product wins

Coway

Cadr Smoke: 447% higher (416.0 vs 76)
Coverage Sq Ft: 62% higher (650.0 vs 400)

Who Should Buy Which?

Find the right product for your needs

Buy Coway if...

COWAY Air Purifiers for

The Coway 400(G) is ideal for individuals prioritizing robust, dedicated air purification for large spaces, up to 650 sq ft. If you suffer from severe allergies, deal with significant pet dander or smoke, and want efficient particle removal (99.999% of 0.01-micron particles) without needing a cooling fan, this is for you. Buyers who value a strong 5-year warranty and superior CADR (416.0 for smoke) will find this product a worthwhile investment, even without remote control or advanced smart home integration.

Buy Dyson if...

Dyson Purifier Cool PC1,

The Dyson Purifier Cool PC1 is perfect for someone seeking a multi-functional device that purifies and cools, suitable for rooms up to 400 sq ft. If you value smart home integration, app control, voice commands, and remote air quality monitoring, this is an excellent choice. It's ideal for those who appreciate sleek design and the convenience of a bladeless fan combined with HEPA H13 filtration for particles down to 0.3 microns and activated carbon for odors, even if it means a lower smoke CADR of 76.

Spec Comparison

9 specs compared

Specification	Coway Air Purifiers for	Dyson Purifier Cool PC1
Price	$649	$488
Rating	4.4(6.5k)	4.4(141)
Cadr Smoke	416	76
Coverage Sq Ft	650	400
Noise Level db Min	22 dB	—
Weight	3.05 lbs	—
Energy Star	Yes	—
Filter Type	True HEPA	HEPA H13
Smart Sensor	Yes	Yes
Model Number	—	TP11
WiFi	—	Yes

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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.

Dyson Purifier Cool

Pros

Captures 99.97% particles down to 0.3 microns.
Activated carbon filter removes gases and odors.
HEPA H13 fully sealed filtration system.
Projects 76 gallons/sec airflow for cooling.

Cons

Low smoke CADR of 76 for 400 sq ft coverage.
Requires extended operation for full room purification.

Frequently Asked Questions

Common questions about this comparison

Which purifier is better for large rooms or open-plan living?

The Coway 400(G) is better for large rooms, purifying up to 650 sq ft with a CADR of 416 for smoke. The Dyson PC1 covers 400 sq ft with a CADR of 76, making it more suitable for smaller spaces.

What's the key difference in their air purification performance?

Coway 400(G) has a higher CADR (416 vs 76) for smoke and captures 99.999% of 0.01-micron particles. Dyson PC1 uses HEPA H13, capturing 99.97% of 0.3-micron particles, plus activated carbon for gases/odors.

Which product offers more advanced smart features and controls?

Dyson Purifier Cool PC1 offers more advanced features like app and voice control, remote air quality monitoring, and 350° oscillation. Coway 400(G) includes Smart Mode, Eco Mode, an AQI display, and a timer.

Is the Dyson's combined fan and purifier function worth it?

Dyson integrates a fan projecting 76 gallons/sec airflow for cooling, which Coway lacks. If you prioritize a combined air purifier and cooling fan with smart app/voice controls for a smaller room, the Dyson's dual functionality can be a valuable feature.