Levoit
Levoit Core 400S
Air purifiers
$219List price
Explore this product Your shortlist, side by side
Levoit Core 400S vs Coway Airmega 250
Find the differences that matter for your next decision.
Coway
Coway Airmega 250
Air purifiers
$399List 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 250.
- Leads 3 of 5 rankable overall specs; Levoit Core 400S takes 2.
- Coverage area: 930 sq ft vs 403 sq ft
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.
Noise levels: 22 dB vs 24 dB
Levoit Core 400S is $180 cheaper. Pay the difference only if coverage area matters to you.
The trade-off to know
Coway Airmega 250: No Wi-Fi app connectivity on the standard 250 model (app available on 250S variant)
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 | Levoit Core 400S | Coway Airmega 250 |
|---|---|---|
| CADRPerformance | 260 CFM / 442 m³/h (Smoke), 260 CFM (Dust), 260 CFM (Pollen) | 249 CFM (Smoke), 261 CFM (Dust), 230 CFM (Pollen) |
| Room sizePerformance | Bedrooms, apartments, mid-size living spaces | Large bedrooms, apartments, living rooms, and open layouts up to 930 sq ft |
| Coverage areaPerformance | 403 sq ft (5 air changes/hr) / 990 sq ft (2 air changes/hr) | 930 sq ft (2 air changes/hr) / 465 sq ft (4 air changes/hr) |
| Filter typesFilters | 3-Stage: Nylon Pre-filter + H13 True HEPA + High-Efficiency Activated Carbon | EZ-clean Washable Pre-filter + Max2 Green True HEPA and Activated Carbon filter |
| Filter lifeFilters | 6–12 months | 12 months (Max2 filter) / Washable slide-out pre-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.
Levoit Core 400S
Reasons to choose it
- Whisper-quiet 24 dB sleep mode with completely dimmable light display
- AirSight Plus laser sensor provides real-time PM2.5 numerical readings
- VeSync smartphone app with scheduling, filter life tracking, and voice control
Worth considering
- Coverage is sized for medium bedrooms and living rooms (under 1,000 sq ft)
- Activated carbon layer is a coated sheet rather than heavy pellet bed
Coway Airmega 250
Reasons to choose it
- 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
Worth considering
- No Wi-Fi app connectivity on the standard 250 model (app available on 250S variant)
- Substantial 20.5 lb weight
Beyond the spec sheet
Living with your choice.
Explore the ownership details available for this pair.
What three years could cost
Levoit Core 400S
3-Year Estimated Total$354
Coway Airmega 250
3-Year Estimated Total$564
Room Placement & Bedroom Noise Check
Physical clearance required for airflow, wall placement, and bedroom noise levels.
Wall Clearance Required
Levoit
360° intake requires 15 in perimeter clearance from walls
Coway
Bottom & dual-side intake: sits flush against back wall
Nighttime Sleep Mode Noise
Levoit
24 dB quiet sleep mode
Coway
22 dB sleep mode with auto-dimming LED light sensor
Unit Footprint & Dimensions
Levoit
Mid-sized cylinder (10.8 × 10.8 × 20.5 in; 11.0 lb)
Coway
Modern slim tower (19.7 × 18.5 × 8.3 in; 20.5 lb)
Everyday ownership notes
Documented ergonomic quirks, hardware annoyances, and maintenance realities reported by real owners.
Levoit: What to watch for
- Maintenance
Requires periodic filter replacements to maintain airflow and odor capture.
Coway: 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 Levoit Core 400S or the Coway Airmega 250?
Levoit Core 400S costs $180 less at list price.
What is the biggest catch with the Levoit Core 400S or Coway Airmega 250?
Both has this deal-breaker: under 1,000 sq ft coverage. Undersized for an open-plan living area.
Which is better for bedrooms, the Levoit Core 400S or the Coway Airmega 250?
Tied on bedrooms. Levoit Core 400S is cheaper. The 2 rankable bedrooms specs split 1 to 1. Saves $180 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.