The catch
Coway Airmega 200M
It has no app, no remote control and no air-quality history.
Side by side
Coway Airmega 200M vs Mighty: Cleaning ratings are close, so check the full filter offer
Quick verdict
Since performance is so close, let price and looks decide. The 200M offers slightly higher pollen CADR and a cleaner square face, while the Mighty has the longer track record and often wider filter availability.
Before you buy
Why, and what it costs you
Pollen CADR: how big the gap is
The published “Pollen CADR” figure is 15% higher on Coway Airmega 200M: 277 CFM, against 240 CFM on Coway Airmega Mighty.
Where this comes from
For pollen cadr, extra published output only helps when your room, surface or workload needs the headroom. On its own, it does not prove better results. The percentage is worked out from the lower published figure.
The catch
Coway Airmega Mighty
A separate button turns on the optional ionizer, and you should leave it off if you don't want it.
Coway Airmega 200M
- Why pick it
- The square design suits your room better.
- Pollen CADR is your top concern.
- The catch
- It has no app, no remote control and no air-quality history.
Coway Airmega Mighty
- Why pick it
- You value the Mighty’s longer model history.
- The classic curved look is more to your taste.
- The catch
- A separate button turns on the optional ionizer, and you should leave it off if you don't want it.
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What this page compares
This comparison of Coway’s closely related medium-room purifiers looks at shape, controls, verified CADR and value.
This one comes down to smoke cadr and pollen cadr first, then to the limits of your own setup.
Day to day
How each one fits your routine
A small difference in airflow counts only when a room is near the limit
With an eight-foot ceiling and a five-air-change target, a 360-square-foot room needs 240 CFM. Airmega 200M's 246 smoke CADR clears that nominal threshold, and Mighty's 233 lands just under it. Pick the 200M if hitting that exact rated-speed target matters. Planning to run only on a quieter, lower setting? Neither published maximum proves the target will be met overnight.
Where this comes from
360 times 8 times 5, divided by 60, comes to 240. The narrow threshold is planning arithmetic based on maximum smoke CADR. It does not predict personal exposure or sleep-speed performance.
Wanting the ionizer off does not set these two apart
Each model has an optional ionizer you can leave off, along with washable prefiltration and separate replacement media. For a mechanical-only routine, either stays on the shortlist as long as the control is set appropriately. Decide by the room calculation and the controls you will use, not on an assumption that one needs ionization or has a washable main filter. Neither adds app-based scheduling to that routine.
Where this comes from
Because the relevant features are shared, they give no false reason to name a winner. Optional ionization is not the same as an always-on stage, and a washable prefilter is not a washable HEPA element.
Which one fits
Pick the situations that sound like you
Wildfire smoke makes its way inside
Coway Airmega 200M lists “246 CFM” for smoke cadr, while Coway Airmega Mighty lists “233 CFM”. For smoke cadr, extra published output only helps when your room, surface or workload needs the headroom. On its own, it does not prove better results.
- Coway Airmega 200M
- Good
- Coway Airmega Mighty
- Better fit
Pollen triggers my allergies
Coway Airmega 200M lists “277 CFM” for pollen cadr, while Coway Airmega Mighty lists “240 CFM”. For pollen cadr, extra published output only helps when your room, surface or workload needs the headroom. On its own, it does not prove better results.
- Coway Airmega 200M
- Similar
- Coway Airmega Mighty
- Similar
Core modes is non-negotiable
Both models list “Auto and Eco” for core modes. Both models show the same result for “Core modes”, so this row won't decide between them.
- Coway Airmega 200M
- Depends
- Coway Airmega Mighty
- Depends
Ionizer is non-negotiable
Both models list “Switchable” for ionizer. Both models show the same result for “Ionizer”, so this row won't decide between them.
- Coway Airmega 200M
- Depends
- Coway Airmega Mighty
- Depends
In practice
Differences you will notice
Pollen CADR: how big the gap is
The published “Pollen CADR” figure is 15% higher on Coway Airmega 200M: 277 CFM, against 240 CFM on Coway Airmega Mighty.
How we worked this out
For pollen cadr, extra published output only helps when your room, surface or workload needs the headroom. On its own, it does not prove better results. The percentage is worked out from the lower published figure.
Plug in your numbers
Can either purifier keep up with your room?
This checks hard limits only. Personal preferences are left out of the math.
Coway Airmega 200M
Works with your numbers246 CFM of verified clean-air delivery works out to about 6.2 air changes per hour in this room. Hitting the 5 ACH target takes 200 CFM.
Coway Airmega Mighty
Works with your numbers233 CFM of verified clean-air delivery works out to about 5.8 air changes per hour in this room. Hitting the 5 ACH target takes 200 CFM.
This uses each model’s pollutant-specific CADR at top speed and a target of five air changes per hour. Quieter settings clean less air. Raw airflow and one-change coverage claims are never swapped in.
Option A
Coway, AP-1518R
Airmega 200M
This small square Coway pairs True HEPA and washable prefiltration with proven airflow for a medium room, and it runs efficiently on automatic.
- Best for
- The square design suits your room better.
Facts we checked
- Smoke CADR: 246 CFM
- Pollen CADR: 277 CFM
- Core modes: Auto and Eco
- Ionizer: Switchable
Option B
Coway, AP-1512HH
Airmega Mighty
Long a value benchmark, it offers True HEPA, strong medium-room CADR and an excellent Eco mode you can set and forget.
- Best for
- You value the Mighty’s longer model history.
Facts we checked
- Smoke CADR: 233 CFM
- Pollen CADR: 240 CFM
- Core modes: Auto and Eco
- Ionizer: Switchable
Spec by spec
Where they really differ
| Spec | Coway Airmega 200M | Coway Airmega Mighty | In practice |
|---|---|---|---|
| Smoke CADR | 246 CFM | 233 CFM | For smoke cadr, extra published output only helps when your room, surface or workload needs the headroom. On its own, it does not prove better results. |
| Pollen CADR | 277 CFM | 240 CFM | For pollen cadr, extra published output only helps when your room, surface or workload needs the headroom. On its own, it does not prove better results. |
| Core modes | Auto and Eco | Auto and Eco | Both models show the same result for “Core modes”, so this row won't decide between them. |
| Ionizer | Switchable | Switchable | Both models show the same result for “Ionizer”, so this row won't decide between them. |
Trade-offs
What each pick costs you
With Coway Airmega 200M
- For an ionizer-free setup, you have to turn off the bipolar ionizer yourself.
With Coway Airmega Mighty
- Run it flat out and the noise can disrupt a conversation or your sleep.
By the numbers
What the data shows
What we found across the air purifiers we compare, plus the checked facts behind each finding.
Show the facts and the math
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| Coway Airmega 200M |
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| |
| Coway Airmega Mighty |
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Ready to buy
See today’s price and what owners say
Open either model on Amazon for the current price, customer reviews and delivery options.
Coway Airmega 200M
The square design suits your room better.
See price & reviews on AmazonCoway Airmega Mighty
You value the Mighty’s longer model history.
See price & reviews on AmazonEach link opens in a new tab.
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