Coway Air Purifiers: Which Airmega Fits Your Space
Every figure on this page is quoted from the Amazon listing for that model. Scores are the average rating Amazon buyers left. Nothing here was handled or measured by us.
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If you typed “conway air purifier”, you almost certainly mean Coway, the Korean brand behind the Airmega line. The right Coway air purifier depends mostly on room size: a closed gaming room or bedroom setup needs a compact Airmega 50 or 100, a large den or open living space suits the Airmega Mighty or Mighty2, and a big home theater or open floor plan calls for the Airmega 350 or 400.
This article covers six Coway Airmega models, ranging from 500 square feet of rated coverage to 3,120. They differ in coverage, filter setup, modes and warranty. Some listings are detailed while others share little beyond the title, so we note where information is missing. We compared listings, specifications and intended use, not hands-on measurements, and all figures below come from Coway’s own listings.
JOB SHEET
Which Coway Air Purifier Should You Buy
Best for: Large quiet home theaters
Pros
- Up to 2,640 sq ft
- CADR dust 376, smoke 352, pollen 450
- Energy Star certified
- Down to about 21.5 dB
Cons
- Noise figure differs, 21.6 vs 21.5 dB
Best for: Open-plan homes and big basements
Pros
- Up to 3,120 sq ft in 60 minutes
- Smart, Eco and Sleep modes
- 22 dB listed noise
- 5-year warranty
Cons
- Largest unit to place
Best for: Small bedrooms and streaming nooks
Pros
- Rated up to 500 sq ft
- 5 pounds, 7 x 7 x 12 inches
- Night light and Auto mode
Cons
- Smallest coverage
- 2-year warranty
Best for: Mid-to-large gaming rooms and living areas
Pros
- Rated up to 1,748 sq ft
- Air quality monitor, Auto and Eco
- Timer and filter indicator
- 3-year warranty
Cons
- Listing lacks noise and CADR figures
- A proven all-rounder for large rooms: Coway Airmega Mighty AP-1512HH
go to no. 01 - The newer Mighty with HEPA plus active carbon: Coway Airmega Mighty2 AP-1512N
go to no. 02 - Small bedrooms and desk corners: Coway Airmega 50
go to no. 03 - Mid-size bedrooms and gaming rooms: Coway Airmega 100
go to no. 04 - The largest spaces with Sleep mode: Coway Airmega 400
go to no. 05 - Big, quiet home theaters with published CADR: Coway Airmega 350
go to no. 06
No. 01
of 6
Coway
Coway Airmega Mighty AP-1512HH
4.1
out of 5
Amazon buyer average
Affiliate link. Price and stock live at Amazon and change there, not on this page.
The COWAY Air Purifier for Home Up to 1,748 square feet, better known as the Airmega Mighty AP-1512HH, is the model most shoppers start with. Its title lists a HEPA filter for smoke, allergies, pet dander and odor, an air quality monitor, Auto and Eco modes, a timer, a filter indicator and a 3-year warranty.
It measures 9.6 x 16.8 x 18.3 inches and weighs 12.5 pounds. Like all the Coway listings here, the description says Airmega purifiers were tested by KCL for capture of 0.01 micron ultra-fine particles under a Korean standard, with the note that performance may vary, and that the HEPA filter meets IEST-RP-CC007 at speed level 1 in SGS testing. The listing does not state a noise level or CADR.
The Mighty suits a large gaming room, a living room with a TV setup or a shared space. If you want the newer version or active carbon named in the title, look at the Mighty2. For a small bedroom, the Airmega 50 or 100 is a better size match.
- Rated up to 1,748 sq ft
- Air quality monitor with Auto and Eco modes
- Timer and filter indicator
- 3-year warranty
No. 02
of 6
Coway
Coway Airmega Mighty2 AP-1512N
4.2
out of 5
Amazon buyer average
Affiliate link. Price and stock live at Amazon and change there, not on this page.
Best for
Mighty fans wanting the newer model
Pros
- Rated up to 1,800 sq ft
- IEST-certified HEPA plus active carbon
- Mold listed among targets
Cons
- Feature list not detailed in listing
- Heavier than the original Mighty
The COWAY Airmega Mighty2 Air Purifier is sold as the next generation of the AP-1512HH. Its title gives coverage up to 1,800 square feet, an IEST-certified HEPA filter and active carbon, targeting allergies, smoke, dust, pets and mold.
It measures 9.3 x 16.9 x 17.9 inches, close to the original, but weighs 15.2 pounds versus 12.5. The listing does not spell out modes, timer, warranty or noise, so we cannot confirm which features carry over from the Mighty. The shared description repeats the KCL and SGS test notes.
Choose the Mighty2 if you like the Mighty’s size and want the newer model with active carbon called out explicitly, which helps with odors from snacks or pets in a closed room. If you need the confirmed feature list, the original Mighty’s listing is more complete.
No. 03
of 6
Coway
Coway Airmega 50
4.1
out of 5
Amazon buyer average
Affiliate link. Price and stock live at Amazon and change there, not on this page.
The COWAY Air Purifier for Bedroom up to 500 square feet is the Airmega 50, model AP-0425C. It is the smallest here at 7 x 7 x 12 inches and 3.5 pounds, easy to place on a desk shelf or next to a streaming chair.
The title lists a HEPA and deodorization filter, an AQI monitor, Auto mode, a filter indicator, a night light and a 2-year warranty. It does not list a timer or noise level. The 500 square foot rating makes it a match for a small bedroom or a compact gaming nook.
It suits a single small room. If your room is larger or you want a timer, the Airmega 100 is the next step up. For more small-room options, see our guide to air purifiers for the bedroom.
No. 04
of 6
Coway
Coway Airmega 100
4.4
out of 5
Amazon buyer average
Affiliate link. Price and stock live at Amazon and change there, not on this page.
The COWAY Air Purifiers for Home up to 810 square feet is the Airmega 100, model AP-0823E. It measures 8.66 x 8.66 x 15.55 inches and weighs 7.5 pounds.
The title lists a HEPA and carbon filter for smoke, allergies, pet dander and odor, an AQI monitor, Auto mode, a timer, a filter indicator, a night light and a 2-year warranty. Compared with the Airmega 50, it adds a timer and a named carbon filter along with more coverage.
This model suits a mid-size bedroom with a gaming PC or a small home office. It gives way to the Mighty once you move into a larger shared room. Readers weighing compact purifiers from other makers can compare with our compact HEPA air purifier review.
- Rated up to 810 sq ft
- HEPA and carbon filter
- AQI monitor, Auto mode and timer
- Night light and filter indicator
No. 05
of 6
Coway
Coway Airmega 400
4.3
out of 5
Amazon buyer average
Affiliate link. Price and stock live at Amazon and change there, not on this page.
The COWAY Air Purifier for Home Up to 3,120 square feet is the Airmega 400, model AP-2015F. The listing says it cleans that area in 60 minutes using its HyperCaptive system: a washable pre-filter, an active carbon filter and a HEPA filter that reduces 99.97% of 0.3 micron particles and also reduces VOCs and odor.
Smart Mode adjusts fan speed to air quality, Eco Mode turns the fan off after 30 minutes of clean air and restarts when pollution is detected, and Sleep Mode lowers noise and power when the room has been dark and clean for 3 minutes. That Sleep behavior is useful when you finish a late session and go to bed. Specs list 22 dB noise, 66 watts, touch controls and a timer, and the title gives a 5-year warranty.
This is the pick for open-plan spaces and large basements. If your room is big but not that big, the Airmega 350 lists slightly lower power draw and published CADR numbers.
- Up to 3,120 sq ft in 60 minutes
- Pre-filter, active carbon and HEPA
- Smart, Eco and Sleep modes
- 5-year warranty per title
No. 06
of 6
Coway
Coway Airmega 350
4.6
out of 5
Amazon buyer average
Well rated
4.6 or better out of 5 on Amazon
Affiliate link. Price and stock live at Amazon and change there, not on this page.
The COWAY Air Purifier for Large Room Whole Home up to 2,640 square feet is the Airmega 350. Its HyperVortex system is rated to clean that area in 60 minutes, and it is the only model here that lists CADR: dust 376, smoke 352 and pollen 450.
The 3-in-1 filtration uses a vacuumable pre-filter, activated carbon and HEPA, reducing up to 99.97% of particles down to 0.3 microns and more than 99% of VOCs, per the listing. A real-time monitor detects particles as small as PM 10, Auto mode adjusts the fan, and a light sensor turns the display light off in the dark. It is Energy Star certified, draws 62 watts and carries a 3-year warranty. The noise figure is listed as 21.6 dB in the features and 21.5 dB in the specs.
The Airmega 350 suits a large home theater where quiet running during movies matters and you want published CADR figures.
What Sets These Models Apart
| Model | Rated coverage | Filters named | Warranty |
|---|---|---|---|
| Airmega Mighty AP-1512HH | 1,748 sq ft | HEPA | 3 years |
| Airmega Mighty2 AP-1512N | 1,800 sq ft | HEPA, active carbon | Not specified |
| Airmega 50 | 500 sq ft | HEPA, deodorization | 2 years |
| Airmega 100 | 810 sq ft | HEPA, carbon | 2 years |
| Airmega 400 | 3,120 sq ft | Pre-filter, carbon, HEPA | 5 years |
| Airmega 350 | 2,640 sq ft | Pre-filter, carbon, HEPA | 3 years |
Figures in this table are copied from the Amazon listings for these models.
NOTES
Buying Tips for Coway Air Purifiers
Best for: Mid-size bedroom setups
Pros
- Rated up to 810 sq ft
- HEPA and carbon filter
- Timer and night light
Cons
- 2-year warranty
Start with your room size and pick a model rated above it. Coverage figures describe how much area a purifier can clean in a set time, so a unit rated well above your room can run on a lower, quieter speed and still keep up. That matters in a closed gaming room, where a PC and a few people warm the air and fan noise competes with game audio.
Look at the filter stack. HEPA handles fine particles like dust and pollen, while carbon targets odors and VOCs. If snack smells or pets are a concern, prefer models that name carbon, such as the Mighty2, Airmega 100, 350 and 400. Plan for filter replacements, since the filter indicator tells you when performance drops.
Finally, check modes. Auto and Smart modes adjust speed to air quality, and the Airmega 400’s Sleep Mode and the 350’s light sensor keep things calm at night. Warranty length also varies from 2 to 5 years across the line.
FAQ
Is "Conway" the same as Coway?
Yes, “Conway” is a common misspelling. The brand is Coway, and its purifiers are sold under the Airmega name.
What is the difference between the Mighty and the Mighty2?
The Mighty2 is listed as the next generation of the AP-1512HH, rated up to 1,800 sq ft versus 1,748, with active carbon named in the title. Its listing gives fewer feature details.
Which Coway is best for a small gaming room?
The Airmega 50 covers up to 500 sq ft and the Airmega 100 up to 810 sq ft. The 100 adds a timer and a carbon filter.
Which Coway covers the largest area?
The Airmega 400, rated up to 3,120 sq ft in 60 minutes.
Which Coway lists the lowest noise?
The Airmega 350 lists about 21.5 to 21.6 dB, and the Airmega 400 lists 22 dB. The other listings do not state noise figures.
Related reading: coway air purifiers for home.
