Coway (brand store)white $269
Shippingabout 3–7 days
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Coway Airmega Mighty2
Rank 4 of 13 robots for large rooms in our ranking, tested by .in our ranking, tested by
Score 6.7 out of 10
Lab tests, 60% of the score: no lab has tested it.
Owners’ ratings, 25%: none yet at the stores that ship to the United States, so this part is left out and the others count for more.
Features, 15%: 6.7, 40 of the 60 points for the facts the maker states.
Price does not count, so a discount never lifts a model. Only robots a lab has tested are ranked.
The highest score today is 8.4.
Is the Coway Airmega Mighty2 right for your home? Find out in 7 questions →
Before you buy, compare it with 2 recommended alternatives
Beside it, two models on sale today that come closest to it on score and price, with the same kind of station where we have them.
Green is the best of these 3, also when they share the lead.
| This model Coway Airmega Mighty2 | Lower score, 30% cheaper Levoit Vital 200S-P Best on 1 fact | Much better, not pricier Levoit Core 400S-P Best on 1 fact | |
|---|---|---|---|
| Price and ranking | |||
| Lowest price | $269Coway (brand store) | $189Levoit (brand store) best | $219Levoit (brand store) |
| Score | best | ||
| Rank | rank 4 of 13 for large rooms | rank 5 of 13 for large rooms | rank 1 of 13 for large rooms |
| Customer rating | – | – | – |
| Station | |||
| Room size same on all | large rooms | large rooms | large rooms |
| Size, noise and age | |||
| On the market since | March 2026 | June 2023 | June 2023 |
Facts as the maker states them. A dash means the maker does not name it. Each model’s page gives the source of every fact. Noise is the maker’s own figure, so we do not judge it, and a customer rating only counts from 20 reviews.
Prices per store
On October 15, 2026 the lowest price for the Coway Airmega Mighty2 is $269 at Coway (brand store), shipping to the United States included. In our ranking it is rank 4 of 13 for large rooms, with a score of 6.7 out of 10.
All prices include shipping to the United States. Sales tax is added at checkout. We may earn a commission when you buy through these links. It never changes our ranking.
Coway (brand store)white 
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Price history
Lowest price per day
Lowest since Oct 14$269
Highest since Oct 14$269
Price drops since Oct 140no drop seen yet
Coway Airmega Mighty2 specifications
The numbers that matter first, then every fact by group. As published by the maker or the store we read it from.
Coway · on the market since March 2026
Clean air delivery rate (CADR)240 cfm
Room size we compare on366 ft²
Noise at the lowest speed19 dB
Filter life12 months
Power at the highest speed56 W
Running cost: Filters: about $139 a year at today’s prices.
Consumables: The filter lasts about 12 months.
Cleaning performance 6 facts
- Clean air delivery rate (CADR)
How much clean air the purifier delivers an hour, measured with smoke, dust and pollen. A higher figure cleans a bigger room or the same room faster.
- 240 cfm (408 m³/h)
- CADR measured to
The test the CADR comes from. AHAM AC-1 and the DOE test are independent and comparable. A maker's own test is not.
- Not stated
- CADR for smoke
The CADR measured with tobacco smoke, the finest of the three test particles. It is the figure to read for wildfire smoke.
- 240 cfm (408 m³/h)
- CADR for dust
The CADR measured with dust.
- 242 cfm (411 m³/h)
- CADR for pollen
The CADR measured with pollen.
- 249 cfm (423 m³/h)
- Room size we compare on
The room size where the purifier changes the air 4.8 times an hour under a 2.5 m ceiling, worked out from its CADR. We use it so every model is compared on the same rule.
- 366 ft² (34 m²)
Filter 1 fact
- Activated carbon filter
A filter of activated carbon that takes out smells and some gases. It does not catch particles.
- yes
Running costs 1 fact
- Filter life
How long the maker says a filter lasts, in months of normal use. A filter that is spent cleans less.
- 12 months
Noise and power 3 facts
- Noise at the lowest speed
The sound level at the lowest speed, as the maker measures it.
- 19 dB
- Noise at the highest speed
The sound level at the highest speed, as the maker measures it.
- 50 dB
- Power at the highest speed
The power the purifier draws at its highest speed.
- 56 W
Air quality sensing 2 facts
- Particle sensor
- Laser
- Automatic mode
The fan speed follows the air quality the sensor reads.
- yes
Sources: cowaymega.com
Our score
Confidence: medium. One lab and fewer than 300 owners’ ratings. The highest score today is 8.4.
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Lab tests 60%–
Left out, so the other parts count for more.
-
Owners’ ratings 25%–
Owners’ ratings, 25%: none yet at the stores that ship to the United States, so this part is left out and the others count for more.
-
Features 15%6.7
40 of 60 points for the facts the maker states.
- Price never countsA sale can’t lift a model. Today’s lowest price sits beside the score, checked every morning.
- No test, no rankOnly robots a lab has tested are ranked. The rest get a provisional score.
- Reviewers beside, not insideReviewers’ picks are shown next to the score and do not count in it.
Frequently asked questions about the Coway Airmega Mighty2
What size of room is the Coway Airmega Mighty2 for?
The Coway Airmega Mighty2 is sized for a room of about 366 ft², the room size we compare it on. Its clean air delivery rate (CADR) is 240 cfm.
How often does the Coway Airmega Mighty2 need a new filter?
The maker gives the filter a life of 12 months.
How loud is the Coway Airmega Mighty2?
The maker states 19 dB at the lowest speed and 50 dB at the highest.
Is the Coway Airmega Mighty2 good for wildfire smoke?
Its CADR for smoke is 240 cfm. A higher number clears smoke from a room faster, so compare it with the size of your room.
The maker
Coway
Coway began in Korea in 1989 and describes itself as a global company with three decades focused on health. In the United States it sells Airmega air purifiers, Bidetmega bidet toilet seats and Aquamega water purifiers.
