The catch
Levoit Core 400S-P
Washing the combined main filter is not an option
Side by side
Levoit Core 400S-P vs Coway Airmega Mighty AP-1512HH: Room ratings almost match, so the choice is remote scheduling or local Eco control
Quick verdict
If remote schedules and a narrow cabinet matter, the Core 400S-P is the pick. The Coway Mighty suits onboard controls, a washable prefilter and an Eco mode that can stop the fan. At 4.8 air changes per hour their published room ratings are almost identical, so coverage alone gives little reason to prefer either.
Before you buy
Why, and what it costs you
Call room coverage a tie
Published room ratings are less than 1% apart.
Where this comes from
(361 − 358) ÷ 358 = 0.84%, and both ratings are at 4.8 ACH.
The catch
Coway Airmega Mighty
No app for remote control
Levoit Core 400S-P
- Why pick it
- VeSync lets you schedule operation and view readings
- A 10.8-inch-wide cabinet fits where a 16.8-inch-wide unit wouldn't
- The catch
- Washing the combined main filter is not an option
Coway Airmega Mighty
- Why pick it
- You'd rather use physical controls than set up Wi-Fi
- A separate prefilter you can wash, plus Eco fan stop
- The catch
- No app for remote control
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What this page compares
The Core 400S-P and Coway Mighty cover similar room sizes, so the choice turns on app scheduling, Eco fan stop, cabinet shape and rated power.
If remote schedules and a narrow cabinet matter, the Core 400S-P is the pick. The Coway Mighty suits onboard controls, a washable prefilter and an Eco mode that can stop the fan. At 4.8 air changes per hour their published room ratings are almost identical, so coverage alone gives little reason to prefer either.
Which one fits
Pick the situations that sound like you
An enclosed room of 320 sq ft at the published rate
Under the stated assumptions, both rated room sizes go beyond 320 sq ft.
- Levoit Core 400S-P
- Good
- Coway Airmega Mighty
- Good
Remote start and schedules are a requirement
Wi-Fi control is missing on the Mighty AP-1512HH.
- Levoit Core 400S-P
- Good
- Coway Airmega Mighty
- Not suitable
The cabinet has to fit in 12 inches of width
Before ventilation clearance, Core is 10.8 inches wide and Mighty is 16.8.
- Levoit Core 400S-P
- Good
- Coway Airmega Mighty
- Not suitable
A prefilter you can remove and wash is wanted
Coway comes with its own washable prefilter. The Core's combined filter must never be washed.
- Levoit Core 400S-P
- Not suitable
- Coway Airmega Mighty
- Good
You want airflow that never stops
Run a fixed speed and avoid Coway Eco fan stop. App control is not needed.
- Levoit Core 400S-P
- Good
- Coway Airmega Mighty
- Good
In practice
Differences you will notice
Call room coverage a tie
Published room ratings are less than 1% apart.
How we worked this out
(361 − 358) ÷ 358 = 0.84%, and both ratings are at 4.8 ACH.
The choice can come down to shape
Levoit is six inches narrower but 1.2 inches deeper.
How we worked this out
16.8 − 10.8 = 6.0 inches in width, and 10.8 − 9.6 = 1.2 inches in depth. Neither is smaller in every dimension.
Eco reshapes when filtration runs
Fan-stop behavior on the Coway is its own decision, apart from app convenience.
How we worked this out
According to the AP-1512HH manual, Eco stops the fan after 30 clean-air minutes. Core 400S-P offers remote schedules. Neither feature shows that the air in the buyer's room gets cleaner.
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.
Levoit Core 400S-P
Works with your numbers231 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.
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
Levoit, LAP-C401S-WUS
Core 400S-P
Small and responsive, this smart purifier moves enough air for a medium room and has one of the better apps in the category.
- Best for
- VeSync lets you schedule operation and view readings
Facts we checked
- Room rating at 4.8 ACH: 358 sq ft
- Remote control: VeSync app and schedules
- Clean-air response: Automatic fan adjustment
- Cabinet width and depth: 10.8 × 10.8 in
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'd rather use physical controls than set up Wi-Fi
Facts we checked
- Room rating at 4.8 ACH: 361 sq ft
- Remote control: No Wi-Fi on AP-1512HH
- Clean-air response: Eco can stop the fan after 30 clean-air minutes
- Cabinet width and depth: 16.8 × 9.6 in
Spec by spec
Where they really differ
| Spec | Levoit Core 400S-P | Coway Airmega Mighty | In practice |
|---|---|---|---|
| Room rating at 4.8 ACH | 358 sq ft | 361 sq ft | A gap of three square feet is no practical upgrade in coverage. |
| Remote control | VeSync app and schedules | No Wi-Fi on AP-1512HH | Let the usefulness of remote access guide the choice. |
| Clean-air response | Automatic fan adjustment | Eco can stop the fan after 30 clean-air minutes | Having the fan stopped is not the same as filtering continuously at low speed. |
| Cabinet width and depth | 10.8 × 10.8 in | 16.8 × 9.6 in | Levoit has the narrower body, Coway the shallower. |
| Rated power | 38 W | 77 W | Actual savings at matched airflow are not measured by these ratings. |
| Prefilter upkeep | Clean the outer prefilter without washing the main filter | Separate washable prefilter | Care for each filter as its instructions say. |
Trade-offs
What each pick costs you
With Levoit Core 400S-P
- Nothing establishes Coway-style Eco fan-stop behavior
With Coway Airmega Mighty
- At 16.8 inches wide, it takes up more space along a wall
Change of plan
When the answer changes
You can't do without remote operation
Go with Levoit Core 400S-P. Within the pair, Core 400S-P alone has it.
You can't do without a separate washable prefilter
Go with Coway Airmega Mighty. That maintenance feature is on the Mighty.
Decision guide
How to decide
The Core 400S-P is the pick when remote schedules and a narrow cabinet matter. The Coway Mighty fits onboard controls, a washable prefilter and an Eco mode that can stop the fan. Published room ratings are almost identical at 4.8 air changes per hour, which gives coverage alone little weight in choosing.
Don't pay extra for a trivial difference in area
Almost the same room size is covered by the two current ratings. A label of 358 versus 361 sq ft shouldn't drive the purchase, since cabinet fit and controls make much clearer differences.
Think about how often you'll adjust settings
The Core 400S-P helps when you want to start or schedule it from another room. A fixed daily routine with local controls suits the Mighty. Its Eco mode can pause the fan, and that may be unwelcome if you deliberately prefer continuous filtration.
Plan for filter upkeep
On the Coway, the washable prefilter is separate from the carbon and HEPA stages. Levoit's outer prefilter gets cleaned as directed, and the combined main filter is not washed. Replacement-filter costs remain with either approach.
What this page can’t tell you
- There is no noise or energy test at matched airflow here. Rated watts and minimum noise figures can't establish a winner on operating cost or bedroom noise.
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 |
|---|---|---|---|
| Levoit Core 400S-P |
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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.
Levoit Core 400S-P
VeSync lets you schedule operation and view readings
See price & reviews on AmazonCoway Airmega Mighty
You'd rather use physical controls than set up Wi-Fi
See price & reviews on AmazonEach link opens in a new tab.
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