Our Verdict
BLUEAIR Air Purifier Wins

It offers vastly superior cadr_smoke at 2163.2 and covers a much larger area of 3385 sq ft. Choose Coway for its specified minimum noise level of 22 dB and slightly better filtration down to 0.01 microns.
Bottom Line: BLUEAIR Air Purifier is the better choice. It offers vastly superior cadr_smoke at 2163.
Key Differences
The most significant spec differences at a glance
Cadr Smoke
560% moreCoverage Sq Ft
117% moreAdvantages
Where each product wins
BLUEAIR
- Cadr Smoke: 560% higher (2163.2 vs 328.0)
- Coverage Sq Ft: 117% higher (3385.0 vs 1560.0)
Who Should Buy Which?
Find the right product for your needs
Buy BLUEAIR if...
BLUEAIR Air Purifier for
This is the ideal air purifier for homeowners with expansive open-concept living spaces, lofts, or multiple interconnected large rooms, as it cleans up to an impressive 3385 sq ft. If you prioritize rapid and powerful smoke, pet hair, and odor elimination with its high 2163.2 CADR and OdorFence technology, Blueair is your best choice. Buyers who appreciate smart home integration via WiFi and a sleek design that doubles as a functional side table will find its features highly appealing, offering both utility and aesthetics.
Buy Coway if...
Coway AP-2015F Airmega 400
The Coway Airmega 400 is perfect for individuals seeking a premium air purifier for large, but not enormous, rooms up to 1560 sq ft, where exceptionally quiet operation is a top priority. With a minimum noise level of 22 dB, it's ideal for bedrooms, home offices, or living areas where peace is essential. Buyers concerned with filtering the smallest particles (99.999% of 0.01-microns) and effective VOC reduction, coupled with energy efficiency and smart auto-adjusting fan speeds, will find this unit a valuable investment despite its higher price.
Spec Comparison
9 specs compared
| Specification | ![]() | ![]() |
|---|---|---|
| Price | $450 | $649 |
| Rating | 4.6(177) | 4.4(6.5k) |
| Cadr Smoke | 2163.2 | 328 |
| Coverage Sq Ft | 3385 | 1560 |
| Noise Level db Min | — | 22 dB |
| Filter Type | HEPASILENT | True HEPA |
| Smart Sensor | Yes | Yes |
| WiFi | Yes | — |
| Weight | — | 24.7 lbs |
| Energy Star | — | Yes |
| Noise Level db Max | — | 52 dB |
Swipe horizontally to see all columns
Pros & Cons
Quick overview of strengths and weaknesses
BLUEAIR Air Purifier
- Covers large areas up to 3385 sq ft.
- Removes 99.97% of particles down to 0.1 microns.
- High CADR of 2163.2 for smoke removal.
- OdorFence technology removes strong odors.
- Interactive display animations offer no utility.
- Requires recurring purchase of replacement filters.
- Optimal performance relies on WiFi connectivity.
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 air purifier is better for very large rooms or homes with significant smoke concerns?
The BLUEAIR Air Purifier is ideal, covering up to 3385 sq ft with a smoke CADR of 2163.2. Coway covers 1560 sq ft with a CADR of 328.0, making it suitable for smaller areas with less intense smoke.
What is the main difference in air cleaning capacity and coverage between the two models?
The BLUEAIR offers substantially higher capacity, covering 3385 sq ft with a smoke CADR of 2163.2. The Coway covers 1560 sq ft with a CADR of 328.0, indicating a smaller effective range and cleaning speed.
When is the higher performance of the BLUEAIR purifier a worthwhile investment?
If you need to purify very large spaces up to 3385 sq ft quickly, especially with smoke, the BLUEAIR's significantly higher CADR of 2163.2 provides superior value for demanding environments where speed and coverage are paramount.
Which purifier offers better fine particle filtration or quieter operation?
The Coway filters 99.999% of 0.01-micron particles and has a specified minimum noise of 22 dB. Blueair filters 99.97% of 0.1-micron particles with HEPASilent technology, but its minimum dB is not specified.
Explore Other Categories
Popular comparisons across the site
Ask AI
Get instant answers about specs
Get the Deets
Ask our AI assistant
Ask Deets anything!























