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Head to head

Levoit Core 400S vs Coway Airmega 250

Coway Airmega 250 leads 3 to 2 on the 5 rankable specs, but Levoit Core 400S costs $180 less.

Catalog as of September 1, 2026

Why, in numbers

Manufacturer list price, not a live offer. Confirm current pricing before you buy.

Levoit Core 400S
$2192 spec wins
Swap

Compare a different air purifier

Levoit Core 300S Smart True HEPA Air Purifier$149Winix 5500-2 Air Purifier$159Coway Airmega AP-1512HH Mighty$229Blueair Blue Pure 311i Max$229Honeywell HPA300 HEPA Air Purifier$249Levoit Core 600S Smart True HEPA$299Blueair Blue Pure 211+ Auto$339Coway Airmega 400$549Blueair Protect 7470i$649Alen BreatheSmart 75i Large Room Air Purifier$749Dyson Purifier Hot+Cool Formaldehyde HP09$799
Coway Airmega 250
$3993 spec wins
Swap

Compare a different air purifier

Levoit Core 300S Smart True HEPA Air Purifier$149Winix 5500-2 Air Purifier$159Coway Airmega AP-1512HH Mighty$229Blueair Blue Pure 311i Max$229Honeywell HPA300 HEPA Air Purifier$249Levoit Core 600S Smart True HEPA$299Blueair Blue Pure 211+ Auto$339Coway Airmega 400$549Blueair Protect 7470i$649Alen BreatheSmart 75i Large Room Air Purifier$749Dyson Purifier Hot+Cool Formaldehyde HP09$799

Buying for

Every rankable spec counts once. Pick a lens to score only what matters for your air purifier.

Straight answer

Overall: 2 to 3

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
  • Noise levels: 22 dB vs 24 dB
  • Levoit Core 400S is $180 cheaper. Pay the difference only if coverage area matters to you.
2 Levoit Core 400S5 rankable of 11 specsCoway Airmega 250 3

Deal-breakers

tick what would make you walk away

  • row

    Undersized for an open-plan living area.

    Trips:Levoit Core 400S · 403 sq ftTrips:Coway Airmega 250 · 930 sq ft

At a glance

The handful of numbers that decide most purchases in this category.

2 of 2 differ

CADR

Levoit

260 CFM / 442 m³/h (Smoke), 260 CFM (Dust), 260 CFM (Pollen)

Coway

249 CFM (Smoke), 261 CFM (Dust), 230 CFM (Pollen)

Coverage area

Levoit

403 sq ft (5 air changes/hr) / 990 sq ft (2 air changes/hr)

Coway

930 sq ft (2 air changes/hr) / 465 sq ft (4 air changes/hr)

True 3-Year Cost of Ownership (TCO)

Upfront price + 3 years of consumables, fees & essential add-ons

Levoit Core 400S

Upfront list price$219
3-Yr H13 True HEPA filter (Every 12 months (~$45/yr))+$135
3-Year Estimated Total$354

Coway Airmega 250

Upfront list price$399
3-Yr Max2 Green True HEPA filter (Every 12 months (~$55/yr))+$165
3-Year Estimated Total$564

Room Placement & Bedroom Noise Check

Physical clearance required for airflow, wall placement, and bedroom noise levels.

Ergonomic & Spatial Check

Wall Clearance Required

Cylindrical 360° filters cannot sit flush against walls without choking intake.

Levoit

360° intake requires 15 in perimeter clearance from walls

Coway

Bottom & dual-side intake: sits flush against back wall

Nighttime Sleep Mode Noise

Levels below 25 dB are virtually silent for light sleepers.

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)

The 90-Day Owner Regret Check

Documented ergonomic quirks, hardware annoyances, and maintenance realities reported by real owners.

Post-Purchase Truths

Levoit: What to watch for

  • Maintenance

    Requires periodic filter replacements to maintain airflow and odor capture.

    Activated carbon and HEPA media gradually saturate, needing replacement once or twice yearly depending on air pollution and pet shedding.

Coway: What to watch for

  • Maintenance

    Requires periodic filter replacements to maintain airflow and odor capture.

    Activated carbon and HEPA media gradually saturate, needing replacement once or twice yearly depending on air pollution and pet shedding.

Levoit Core 400S$2192 wins
Coway Airmega 250$3993 wins

Performance

3 differences
Performance specifications. Middle column is Levoit Core 400S, right column is Coway Airmega 250.
CADR260 CFM / 442 m³/h (Smoke), 260 CFM (Dust), 260 CFM (Pollen) (wins this row: higher)249 CFM (Smoke), 261 CFM (Dust), 230 CFM (Pollen)
Room sizeBedrooms, apartments, mid-size living spacesLarge bedrooms, apartments, living rooms, and open layouts up to 930 sq ft
Coverage area403 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) (wins this row: higher)

Filters

2 differences
Filters specifications. Middle column is Levoit Core 400S, right column is Coway Airmega 250.
Filter types3-Stage: Nylon Pre-filter + H13 True HEPA + High-Efficiency Activated CarbonEZ-clean Washable Pre-filter + Max2 Green True HEPA and Activated Carbon filter
Filter life6–12 months12 months (Max2 filter) / Washable slide-out pre-filter

Usability & Smart

leads 1-0
Usability & Smart specifications. Middle column is Levoit Core 400S, right column is Coway Airmega 250.
Noise levels24 dB (Sleep mode) – 52 dB (High mode)22 dB (Sleep mode) – 54 dB (Max speed) (wins this row: lower)
Energy consumption38 W max power consumption60 W max power consumption (Energy Star Certified)
Smart featuresVeSync Wi-Fi App, Amazon Alexa, Google Assistant voice controlSmart Auto Mode, Rapid Mode, Eco Mode, and Sleep Mode
Air quality sensorsAirSight Plus Laser Dust Sensor with PM2.5 numerical display and 4-color ringReal-time particle sensor with colorful LED air quality indicator

Design & Ownership

2 differences
Design & Ownership specifications. Middle column is Levoit Core 400S, right column is Coway Airmega 250.
Weight14.1 lb (6.4 kg) (wins this row: lower)20.5 lb (9.3 kg)
Warranty2 years limited warranty5 years limited warranty on motor / 1 year electronic parts (wins this row: higher)
Most rows are from the official spec sheet. Marked rows are other published figures or our summary, not lab tests we ran.
Levoit Core 400S source (opens in a new tab)Coway Airmega 250 source (opens in a new tab)

Which one should you buy

Pick this one if

Levoit Core 400S

Smart air purifier with H13 True HEPA filtration, AirSight Plus laser dust sensor, and VeSync app control.

  • 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

What you give up

  • 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
Full Levoit Core 400S specs →

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
Full Coway Airmega 250 specs →

Best for each use

Bedrooms

Quiet nights: low-speed noise, sleep mode, schedules from your phone

Tied on bedrooms. Levoit Core 400S is cheaper.

  • The 2 rankable bedrooms specs split 1 to 1.
  • Saves $180 at list price.

Big rooms & allergies

Open-plan rooms or allergies: CADR, coverage, filter grade

Tied on big rooms & allergies. Levoit Core 400S is cheaper.

  • The 2 rankable big rooms & allergies specs split 1 to 1.
  • Saves $180 at list price.

Low running cost

Cheap to own: filter life, power draw, warranty

Too close to call on low running cost from the spec sheets. Only warranty is rankable here.

  • Filter life: 6–12 months vs 12 months
  • Energy consumption: 38 W max power consumption vs 60 W max power consumption

Every answer above is scored from published figures. A lens uses only the rows that matter for that use, including marked rows that are not on the official sheet. Switch lenses interactively in the panel above.

Done deciding?

Open the full standalone spec sheet for either device.

Levoit Core 400S spec sheetCoway Airmega 250 spec sheet

Manufacturer pages: Levoit Core 400S ↗ · Coway Airmega 250 ↗

Common questions

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.

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