Coway
Coway Airmega 400
Air purifiers
$549List price
Explore this product Your shortlist, side by side
Coway Airmega 400 vs Coway Airmega AP-1512HH Mighty
Find the differences that matter for your next decision.
Coway
Coway Airmega AP-1512HH Mighty
Air purifiers
$229List price
Explore this product What matters most to you?
Start with all rankable specifications, or focus on a particular use.
Your starting point
Buy the Coway Airmega 400.
- Leads 4 of 5 rankable overall specs; Coway Airmega AP-1512HH Mighty takes 1.
- CADR: 350 CFM vs 233 CFM
How we reached this
We compare the published specifications relevant to your priority. Each rankable specification counts once; your selected requirements can rule a product out. This is a guide to the numbers, not a laboratory performance score.
Coverage area: 1,560 sq ft vs 361 sq ft
Coway Airmega AP-1512HH Mighty is $320 cheaper. Pay the difference only if cadr matters to you.
The trade-off to know
Coway Airmega 400: Cube design has a large floor footprint
Look at the differences ↓Refine your requirements
What would rule one out?
Side by side
The differences, in detail.
Start with the key specs, then explore as much as you need.
| What you’re comparing | Coway Airmega 400 | Coway Airmega AP-1512HH Mighty |
|---|---|---|
| CADRPerformance | 350 CFM (Smoke), 328 CFM (Dust), 400 CFM (Pollen) | 233 CFM (Smoke), 246 CFM (Dust), 240 CFM (Pollen) |
| Room sizePerformance | Large living rooms, open floor plans, offices | Bedrooms, home offices, medium living rooms |
| Coverage areaPerformance | 1,560 sq ft (2 air changes/hr) / 780 sq ft (4 air changes/hr) | 361 sq ft (4.8 air changes/hr) / 874 sq ft (2 air changes/hr) |
| Filter typesFilters | Washable Pre-filter + Max2 Filter (True HEPA + Activated Carbon) | 4-Stage: Washable Pre-filter + Deodorization Carbon + True HEPA + Vital Ion |
| Filter lifeFilters | 12 months (Max2 filter) / Washable pre-filters | 12 months (True HEPA) / 6 months (Carbon) |
Showing 5 of 11 specifications. Missing values stay unlisted. About the sources
Both sides of the decision
What you gain. What you give up.
Coway Airmega 400
Reasons to choose it
- Massive CADR cleans up to 1,560 sq ft twice per hour
- Dual-sided air intake with combined True HEPA and carbon filters
- Smart Eco mode turns off fan when air remains clean for 30 minutes
Worth considering
- Cube design has a large floor footprint
- No mobile app connectivity on the non-S model
Coway Airmega AP-1512HH Mighty
Reasons to choose it
- High smoke and particulate filtration efficiency in a compact footprint
- Eco Mode powers off fan automatically after 30 minutes of clean air
- Washable pre-filter extends the life of internal carbon and HEPA filters
Worth considering
- No Wi-Fi connectivity or mobile smartphone app
- Ionizer feature produces trace ozone if left enabled
Beyond the spec sheet
Living with your choice.
Explore the ownership details available for this pair.
Is the newer model worth it?
Coway sibling models compared across generations.
Our recommendation: Compare the spec differences below to see if the price premium justifies the newer model's additions.
What three years could cost
Coway Airmega 400
3-Year Estimated Total$819
Coway Airmega AP-1512HH Mighty
3-Year Estimated Total$319
Room Placement & Bedroom Noise Check
Physical clearance required for airflow, wall placement, and bedroom noise levels.
Wall Clearance Required
Airmega 400
Requires 12 in perimeter airflow space
Airmega AP-1512HH Mighty
Front-intake design: can sit almost flush against walls (leaves floor space open)
Nighttime Sleep Mode Noise
Airmega 400
Standard sleep speed
Airmega AP-1512HH Mighty
24.4 dB lowest speed (vital ionizer can be toggled off)
Unit Footprint & Dimensions
Airmega 400
Standard room purifier footprint
Airmega AP-1512HH Mighty
Boxy square unit (16.8 × 18.3 × 9.6 in; 12.3 lb)
Everyday ownership notes
Documented ergonomic quirks, hardware annoyances, and maintenance realities reported by real owners.
Airmega 400: What to watch for
- Maintenance
Requires periodic filter replacements to maintain airflow and odor capture.
Airmega AP-1512HH Mighty: What to watch for
- Hardware Quirk
Ionizer ("Vital Ion") produces negligible ozone and should be disabled.
Know what’s behind the comparison
Published specs. Visible sources.
Clinchmark compares manufacturer specifications and other published information. We have not independently lab-tested these products. Editorial assessments and unknown values are identified in the specification details.
Catalog snapshot: September 1, 2026. Prices, availability, and provider terms can change.
Still weighing it up?
Which is cheaper, the Coway Airmega 400 or the Coway Airmega AP-1512HH Mighty?
Coway Airmega AP-1512HH Mighty costs $320 less at list price.
What is the biggest catch with the Coway Airmega 400 or Coway Airmega AP-1512HH Mighty?
Both has this deal-breaker: no Wi-Fi app. No schedules or remote control from your phone.
Which is better for bedrooms, the Coway Airmega 400 or the Coway Airmega AP-1512HH Mighty?
Tied on bedrooms. Coway Airmega AP-1512HH Mighty is cheaper. The 2 rankable bedrooms specs split 1 to 1. Saves $320 at list price.
What cannot be compared from spec sheets?
Of the 11 specs tracked here, 6 are descriptive and cannot be ranked on numbers alone. Spec sheets also cannot measure subjective factors like build quality, real-world performance, or comfort.