Head to head
Coway Airmega AP-1512HH Mighty vs Coway Airmega 250
Coway Airmega 250 leads 4 to 1 on the 5 rankable specs, but Coway Airmega AP-1512HH Mighty costs $170 less.
Catalog as of September 1, 2026
Why, in numbers
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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.
Buying for
Straight answer
Overall: 1 to 4
Buy the Coway Airmega 250.
- Leads 4 of 5 rankable overall specs; Coway Airmega AP-1512HH Mighty takes 1.
- CADR: 249 CFM vs 233 CFM
- Coverage area: 930 sq ft vs 361 sq ft
- Coway Airmega AP-1512HH Mighty is $170 cheaper. Pay the difference only if cadr matters to you.
At a glance
The handful of numbers that decide most purchases in this category.
CADR
Airmega AP-1512HH Mighty
233 CFM (Smoke), 246 CFM (Dust), 240 CFM (Pollen)
Airmega 250
249 CFM (Smoke), 261 CFM (Dust), 230 CFM (Pollen)
Coverage area
Airmega AP-1512HH Mighty
361 sq ft (4.8 air changes/hr) / 874 sq ft (2 air changes/hr)
Airmega 250
930 sq ft (2 air changes/hr) / 465 sq ft (4 air changes/hr)
True 3-Year Cost of Ownership (TCO)
Coway Airmega AP-1512HH Mighty
Coway Airmega 250
Room Placement & Bedroom Noise Check
Physical clearance required for airflow, wall placement, and bedroom noise levels.
Wall Clearance Required
Front-intake design: can sit almost flush against walls (leaves floor space open)
Bottom & dual-side intake: sits flush against back wall
Nighttime Sleep Mode Noise
24.4 dB lowest speed (vital ionizer can be toggled off)
22 dB sleep mode with auto-dimming LED light sensor
Unit Footprint & Dimensions
Boxy square unit (16.8 × 18.3 × 9.6 in; 12.3 lb)
Modern slim tower (19.7 × 18.5 × 8.3 in; 20.5 lb)
The 90-Day Owner Regret Check
Documented ergonomic quirks, hardware annoyances, and maintenance realities reported by real owners.
Airmega AP-1512HH Mighty: What to watch for
- Hardware Quirk
Ionizer ("Vital Ion") produces negligible ozone and should be disabled.
Airmega 250: What to watch for
- Maintenance
Requires periodic filter replacements to maintain airflow and odor capture.
Performance
leads 2-0| CADR | 233 CFM (Smoke), 246 CFM (Dust), 240 CFM (Pollen) | 249 CFM (Smoke), 261 CFM (Dust), 230 CFM (Pollen) (wins this row: higher) |
|---|---|---|
| Room size | Bedrooms, home offices, medium living rooms | Large bedrooms, apartments, living rooms, and open layouts up to 930 sq ft |
| Coverage area | 361 sq ft (4.8 air changes/hr) / 874 sq ft (2 air changes/hr) | 930 sq ft (2 air changes/hr) / 465 sq ft (4 air changes/hr) (wins this row: higher) |
Filters
2 differences| Filter types | 4-Stage: Washable Pre-filter + Deodorization Carbon + True HEPA + Vital Ion | EZ-clean Washable Pre-filter + Max2 Green True HEPA and Activated Carbon filter |
|---|---|---|
| Filter life | 12 months (True HEPA) / 6 months (Carbon) | 12 months (Max2 filter) / Washable slide-out pre-filter |
Usability & Smart
leads 1-0| Noise levels | 24 dB (Low) – 53 dB (Turbo high) | 22 dB (Sleep mode) – 54 dB (Max speed) (wins this row: lower) |
|---|---|---|
| Energy consumption | 77 W max (Energy Star verified, 4.9W in Eco mode) | 60 W max power consumption (Energy Star Certified) |
| Smart features | Smart Auto Mode + Eco Mode (no Wi-Fi app) | Smart Auto Mode, Rapid Mode, Eco Mode, and Sleep Mode |
| Air quality sensors | Air quality particle sensor with 3-color real-time LED indicator | Real-time particle sensor with colorful LED air quality indicator |
Design & Ownership
2 differences| Weight | 12.3 lb (5.6 kg) (wins this row: lower) | 20.5 lb (9.3 kg) |
|---|---|---|
| Warranty | 3 years limited manufacturer warranty | 5 years limited warranty on motor / 1 year electronic parts (wins this row: higher) |
Which one should you buy
Pick this one if
Coway Airmega AP-1512HH Mighty
Award-winning compact 4-stage True HEPA air purifier with Vital Ionizer and energy-saving Eco mode.
- 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
What you give up
- No Wi-Fi connectivity or mobile smartphone app
- Ionizer feature produces trace ozone if left enabled
Pick this one if
Coway Airmega 250
Modern slim aesthetic air purifier with Green True HEPA Max2 filtration, covering up to 930 sq ft, Smart Auto mode, and easy-clean washable pre-filter.
- Green True HEPA filter captures 99.999% of 0.01-micron ultrafine particles and neutralizes odors
- Easy-to-clean EZ-pull front pre-filter slides out from the top without opening the machine
- Covers up to 930 sq ft with Smart Auto Mode and real-time PM2.5 particle sensor LED ring
What you give up
- No Wi-Fi app connectivity on the standard 250 model (app available on 250S variant)
- Substantial 20.5 lb weight
Best for each use
Bedrooms
Tied on bedrooms. Coway Airmega AP-1512HH Mighty is cheaper.
Big rooms & allergies
For big rooms & allergies, buy the Coway Airmega 250.
Low running cost
Too close to call on low running cost from the spec sheets. Only warranty is rankable here.
Done deciding?
Open the full standalone spec sheet for either device.
Manufacturer pages: Coway Airmega AP-1512HH Mighty ↗ · Coway Airmega 250 ↗
Common questions
Which is cheaper, the Coway Airmega AP-1512HH Mighty or the Coway Airmega 250?
Coway Airmega AP-1512HH Mighty costs $170 less at list price.
What is the biggest catch with the Coway Airmega AP-1512HH Mighty or Coway Airmega 250?
Coway Airmega AP-1512HH Mighty has this deal-breaker: no Wi-Fi app. No schedules or remote control from your phone.
Which is better for bedrooms, the Coway Airmega AP-1512HH Mighty or the Coway Airmega 250?
Tied on bedrooms. Coway Airmega AP-1512HH Mighty is cheaper. The 2 rankable bedrooms specs split 1 to 1. Saves $170 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.