Coway
Coway Airmega 400
Air purifiers
$549List price
Explore this product Your shortlist, side by side
Coway Airmega 400 vs Winix 5500-2 Air Purifier
Find the differences that matter for your next decision.
Winix
Winix 5500-2 Air Purifier
Air purifiers
$159List 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; Winix 5500-2 Air Purifier takes 1.
- CADR: 350 CFM vs 232 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 360 sq ft
Winix 5500-2 Air Purifier is $390 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 | Winix 5500-2 Air Purifier |
|---|---|---|
| CADRPerformance | 350 CFM (Smoke), 328 CFM (Dust), 400 CFM (Pollen) | 232 CFM (Smoke), 243 CFM (Dust), 246 CFM (Pollen) |
| Room sizePerformance | Large living rooms, open floor plans, offices | Bedrooms, nurseries, home offices up to 360 sq ft |
| Coverage areaPerformance | 1,560 sq ft (2 air changes/hr) / 780 sq ft (4 air changes/hr) | 360 sq ft (5 air changes/hr) / 880 sq ft (2 air changes/hr) |
| Filter typesFilters | Washable Pre-filter + Max2 Filter (True HEPA + Activated Carbon) | Fine Mesh Pre-Filter + Washable AOC Carbon + True HEPA (99.97%) |
| Filter lifeFilters | 12 months (Max2 filter) / Washable pre-filters | 12 months (HEPA) / Washable carbon filter |
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
Winix 5500-2 Air Purifier
Reasons to choose it
- Washable Advanced Odor Control (AOC) carbon filter with real carbon pellets
- PlasmaWave technology breaks down pollutants at molecular level
- Unbeatable performance per dollar in medium rooms
Worth considering
- No mobile app connectivity or smart home controls
- Aesthetics and plastic chassis are dated
Beyond the spec sheet
Living with your choice.
Explore the ownership details available for this pair.
What three years could cost
Coway Airmega 400
3-Year Estimated Total$819
Winix 5500-2 Air Purifier
3-Year Estimated Total$294
Everyday ownership notes
Documented ergonomic quirks, hardware annoyances, and maintenance realities reported by real owners.
Coway: What to watch for
- Maintenance
Requires periodic filter replacements to maintain airflow and odor capture.
Winix: What to watch for
- Maintenance
Requires periodic filter replacements to maintain airflow and odor capture.
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 Winix 5500-2 Air Purifier?
Winix 5500-2 Air Purifier costs $390 less at list price.
What is the biggest catch with the Coway Airmega 400 or Winix 5500-2 Air Purifier?
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 Winix 5500-2 Air Purifier?
Tied on bedrooms. Winix 5500-2 Air Purifier is cheaper. The 2 rankable bedrooms specs split 1 to 1. Saves $390 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.