Coway Airmega 400 Air Purifier, 3,120 sq ft, AP-2015F

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Product guide

Coway Airmega 400 Air Purifier, 3,120 sq ft, AP-2015F

AP-2015F: Coway Airmega 400 is a corded air purifier with a three-stage filter system and automatic air-quality-based fan control. Its listing claims coverage of up to 3,120 square feet in 60 minutes, while Eco and Sleep modes adjust operation under specified conditions.

At a glance

The listing says it is designed for spaces up to 3,120 sq. ft. with one air change in 60 minutes.
Pre-filter, activated carbon and HEPA filtration are listed. The manufacturer claims the system reduces 99.97% of 0.3-micron particles.
Smart Mode adjusts fan speed based on detected room air quality. Eco Mode can switch the fan off after 30 minutes of sustained clean air and restart when pollution is detected.
Sleep Mode reduces noise and power consumption after the unit detects darkness and clean air for three minutes.

Price

$343.99Save 46%

Reference price: ~~$633.69~~

Price checked: Nov 14, 2026

View offer Ahead of Black FridayExplore the selection

Often bought together

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Pros and cons

Pros

Three filter stages address particles, odors and listed VOCs.
Automatic Smart, Eco and Sleep modes can adjust operation without requiring constant manual fan changes.
The listed coverage and 60-minute cleaning claim may suit a large open area, subject to room conditions.

Cons

At 24.7 pounds and 22.8 inches high, it is a substantial unit to move or place in a small room.
The stated coverage is tied to a 60-minute cleaning claim, so it should not be read as a guarantee of identical performance in every room.

Technical specifications

16 specifications

Identity
Brand	Coway
Model	Airmega 400

Filtration and coverage
Filter types	HEPA Filter, Active Carbon Filter, Pre-Filter
Listed floor area	3120 square_feet
Particle retention size	0.3 micron
Contaminants listed	Dust, Odors, Pet Dander, Pollen, Volatile Organic Compounds (VOCs)

Modes and controls
Control method	Touch
Features	Air Quality Monitor, Eco Mode, Filter Life Indicator, Smart Mode, Timer

Power and operation
Power configuration	Corded Electric
Wattage	66 watts
Listed noise level	22 db

Dimensions and installation
Dimensions	14.8"D x 14.8"W x 22.8"H
Weight	24.7 pounds

Color and compliance
Color	White
Certifications listed	CARB Certified, ETL Certified, Energy Star Certified
Warranty description	5 year manufacturer's limited warranty

What to know before buying

Listing details to confirm

Coverage is a manufacturer claim for cleaning spaces up to 3,120 sq. ft. in 60 minutes, and filtration results may vary with the room and use conditions. Sleep Mode requires the stated darkness and clean-air detection, while Eco Mode requires 30 minutes of clean air before fan shutoff. The 22 db figure is listed without an operating mode. The listing names a washable pre-filter in the title, while the details list a pre-filter without specifying washability. Confirm the applicable filter care instructions and warranty terms for the selected listing.

What’s in the box

Included

Air purifier
Filter set
User manual

Who is it for?

A good fit for

Buyers seeking a purifier with a large stated coverage area and automatic air-quality response.
Households looking for listed filtration of pollen, dust, pet dander, odors and VOCs.
People who want Eco and Sleep modes that adjust fan operation in response to room conditions.

Less suited to

Buyers who need a lightweight or compact purifier.
Buyers who require a stated room coverage figure under 60 minutes or a guaranteed odor-removal outcome.

Coway Airmega 400 Air Purifier, 3,120 sq ft, AP-2015F · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.6 / 5 · 2,212 ratings

5 stars82%82%
4 stars10%10%
3 stars3%3%
2 stars1%1%
1 star4%4%

Customer feedback highlights perceived effectiveness, quieter operation, improved air quality and relief from sneezing, while some buyers describe the sound as comparable to a box fan. Feedback on value and odor removal is mixed. These are customer perceptions rather than performance guarantees. For buyers considering the large-area claim and the carbon filter, the reported odor results are not uniform, and the listed 22 db figure does not specify the operating mode.

Positive themes

Customers report effective air cleaning, quieter operation and improved air quality.
Some customers mention reduced sneezing and appreciate the purifier's appearance.

Mixed feedback

Customers differ on whether the purifier is worth the cost.
Feedback on odor removal is mixed.

Frequently asked questions

What size area does the listing say the Airmega 400 can cover?

It claims coverage up to 3,120 square feet in 60 minutes. Actual results can vary by room and operating conditions.

What filters are listed?

The details name a pre-filter, active carbon filter and HEPA filter. The title calls the pre-filter washable, but the details do not specify that, so confirm filter care instructions.

How does Smart Mode work?

The manufacturer says Smart Mode adjusts fan speed based on room air quality.

What is included in the package?

The listed components are the air purifier, filter set and user manual.