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Head to head

Coway Airmega AP-1512HH Mighty vs Blueair Blue Pure 311i Max

Blueair Blue Pure 311i Max leads 4 to 1 on the 5 rankable specs.

Catalog as of September 1, 2026

Why, in numbers

  • CADR: Coway Airmega AP-1512HH Mighty lists 233 CFM (Smoke), 246 CFM (Dust), 240 CFM (Pollen) (Coway sheet, 2026-09-02); Blueair Blue Pure 311i Max lists 250 CFM (Smoke), 250 CFM (Dust), 250 CFM (Pollen) (Blueair sheet, 2026-09-02).
  • Coverage area: Coway Airmega AP-1512HH Mighty lists 361 sq ft (4.8 air changes/hr) / 874 sq ft (2 air changes/hr) (Coway sheet, 2026-09-02); Blueair Blue Pure 311i Max lists 387 sq ft (4.8 air changes/hr) / 929 sq ft (2 air changes/hr) (Blueair sheet, 2026-09-02).
  • Room size: Coway Airmega AP-1512HH Mighty lists Bedrooms, home offices, medium living rooms (Coway sheet, 2026-09-02); Blueair Blue Pure 311i Max lists Medium to large bedrooms, living rooms, and open offices up to 387 sq ft (4.8 ACH) / 929 sq ft (2 ACH) (Blueair sheet, 2026-09-02).
  • Filter types: Coway Airmega AP-1512HH Mighty lists 4-Stage: Washable Pre-filter + Deodorization Carbon + True HEPA + Vital Ion (Coway sheet, 2026-09-02); Blueair Blue Pure 311i Max lists HEPASilent Main Particle + Carbon filter with customizable machine-washable fabric pre-filter (Blueair sheet, 2026-09-02).
  • Filter life: Coway Airmega AP-1512HH Mighty lists 12 months (True HEPA) / 6 months (Carbon) (Coway sheet, 2026-09-02); Blueair Blue Pure 311i Max lists 6 to 9 months (tracked by RealTrack algorithm in app) (Blueair sheet, 2026-09-02).

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

Coway Airmega AP-1512HH Mighty
$2291 spec win
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Blueair Blue Pure 311i Max
$2294 spec wins
Swap

Compare a different air purifier

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Buying for

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

Straight answer

Overall: 1 to 4

Buy the Blueair Blue Pure 311i Max.

  • Leads 4 of 5 rankable overall specs; Coway Airmega AP-1512HH Mighty takes 1.
  • CADR: 250 CFM vs 233 CFM
  • Coverage area: 387 sq ft vs 361 sq ft
  • Same list price, so the spec lead is the whole story.
1 Coway Airmega AP-1512HH Mighty5 rankable of 11 specsBlueair Blue Pure 311i Max 4

Deal-breakers

tick what would make you walk away

  • row

    No schedules or remote control from your phone.

    Trips:Coway Airmega AP-1512HH Mighty · Smart Auto Mode + Eco ModeClear:Blueair Blue Pure 311i Max · Blueair App
  • row

    Undersized for an open-plan living area.

    Trips:Coway Airmega AP-1512HH Mighty · 361 sq ftTrips:Blueair Blue Pure 311i Max · 387 sq ft

At a glance

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

2 of 2 differ

CADR

Coway

233 CFM (Smoke), 246 CFM (Dust), 240 CFM (Pollen)

Blueair

250 CFM (Smoke), 250 CFM (Dust), 250 CFM (Pollen)

Coverage area

Coway

361 sq ft (4.8 air changes/hr) / 874 sq ft (2 air changes/hr)

Blueair

387 sq ft (4.8 air changes/hr) / 929 sq ft (2 air changes/hr)

True 3-Year Cost of Ownership (TCO)

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

Coway Airmega AP-1512HH Mighty

Upfront list price$229
3-Yr HEPA + 2x carbon pack (Annual filter pack (~$30/yr))+$90
3-Year Estimated Total$319

Blueair Blue Pure 311i Max

Upfront list price$229
3-Yr SmokeBlock combo filter (Every 6–9 months (~$35/yr))+$105
3-Year Estimated Total$334

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.

Coway

Front-intake design: can sit almost flush against walls (leaves floor space open)

Blueair

360° fabric pre-filter intake (needs 12 in wall space)

Nighttime Sleep Mode Noise

Levels below 25 dB are virtually silent for light sleepers.

Coway

24.4 dB lowest speed (vital ionizer can be toggled off)

Blueair

23 dB lowest speed setting

Unit Footprint & Dimensions

Coway

Boxy square unit (16.8 × 18.3 × 9.6 in; 12.3 lb)

Blueair

Cylindrical aesthetic (12.4 × 12.4 × 18.9 in; 7.8 lb)

The 90-Day Owner Regret Check

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

Post-Purchase Truths

Coway: What to watch for

  • Hardware Quirk

    Ionizer ("Vital Ion") produces negligible ozone and should be disabled.

    Many asthma and allergy sufferers immediately toggle the optional ionizer off to ensure completely emission-free mechanical HEPA filtration.

Blueair: What to watch for

  • Maintenance

    Outer fabric pre-filter attracts visible pet fur and lint.

    The decorative fabric outer sleeve functions as the coarse pre-filter, requiring weekly vacuuming to avoid looking dusty in living rooms.

Coway Airmega AP-1512HH Mighty$2291 win
Blueair Blue Pure 311i Max$2294 wins

Performance

leads 2-0
Performance specifications. Middle column is Coway Airmega AP-1512HH Mighty, right column is Blueair Blue Pure 311i Max.
CADR233 CFM (Smoke), 246 CFM (Dust), 240 CFM (Pollen)250 CFM (Smoke), 250 CFM (Dust), 250 CFM (Pollen) (wins this row: higher)
Room sizeBedrooms, home offices, medium living roomsMedium to large bedrooms, living rooms, and open offices up to 387 sq ft (4.8 ACH) / 929 sq ft (2 ACH)
Coverage area361 sq ft (4.8 air changes/hr) / 874 sq ft (2 air changes/hr)387 sq ft (4.8 air changes/hr) / 929 sq ft (2 air changes/hr) (wins this row: higher)

Filters

2 differences
Filters specifications. Middle column is Coway Airmega AP-1512HH Mighty, right column is Blueair Blue Pure 311i Max.
Filter types4-Stage: Washable Pre-filter + Deodorization Carbon + True HEPA + Vital IonHEPASilent Main Particle + Carbon filter with customizable machine-washable fabric pre-filter
Filter life12 months (True HEPA) / 6 months (Carbon)6 to 9 months (tracked by RealTrack algorithm in app)

Usability & Smart

leads 1-0
Usability & Smart specifications. Middle column is Coway Airmega AP-1512HH Mighty, right column is Blueair Blue Pure 311i Max.
Noise levels24 dB (Low) – 53 dB (Turbo high)23 dB (Night mode) – 50 dB (Max boost) (wins this row: lower)
Energy consumption77 W max (Energy Star verified, 4.9W in Eco mode)38 W max power consumption (Energy Star Most Efficient)
Smart featuresSmart Auto Mode + Eco Mode (no Wi-Fi app)Blueair App (iOS/Android), voice control with Amazon Alexa and Google Assistant, geofencing Welcome Home feature
Air quality sensorsAir quality particle sensor with 3-color real-time LED indicatorLaser particle sensor with 5-color LED air quality indicator ring (PM1, PM2.5, PM10)

Design & Ownership

2 differences
Design & Ownership specifications. Middle column is Coway Airmega AP-1512HH Mighty, right column is Blueair Blue Pure 311i Max.
Weight12.3 lb (5.6 kg)7.8 lb (3.5 kg) (wins this row: lower)
Warranty3 years limited manufacturer warranty (wins this row: higher)2 years limited warranty (extendable to 3 years with product registration)
Most rows are from the official spec sheet. Marked rows are other published figures or our summary, not lab tests we ran.
Coway Airmega AP-1512HH Mighty source (opens in a new tab)Blueair Blue Pure 311i Max source (opens in a new tab)

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
Full Coway Airmega AP-1512HH Mighty specs →

Pick this one if

Blueair Blue Pure 311i Max

Smart air purifier with HEPASilent dual filtration technology, cleaning up to 929 sq ft in 30 minutes, 23dB whisper quiet operation, and Blueair app control.

  • HEPASilent dual filtration combines electrostatic and mechanical filtration for faster airflow at lower noise
  • Cleans up to 387 sq ft in 12.5 minutes (4.8 ACH) / up to 929 sq ft in 30 minutes (2 ACH)
  • Ultra-quiet 23dB Night Mode with Energy Star certified low electricity draw

What you give up

  • Fabric pre-filter covers the exterior and requires periodic vacuuming/washing
  • Filter replacements needed every 6 to 9 months
Full Blueair Blue Pure 311i Max specs →

Best for each use

Bedrooms

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

For bedrooms, buy the Blueair Blue Pure 311i Max.

  • Leads 2 of 2 rankable bedrooms specs.
  • Noise levels: 23 dB vs 24 dB
  • Weight: 7.8 lb vs 12.3 lb
  • Same list price, so the spec lead is the whole story.

Big rooms & allergies

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

For big rooms & allergies, buy the Blueair Blue Pure 311i Max.

  • Leads 2 of 2 rankable big rooms & allergies specs.
  • CADR: 250 CFM vs 233 CFM
  • Coverage area: 387 sq ft vs 361 sq ft
  • Same list price, so the spec lead is the whole story.

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: 12 months vs 6 to 9 months
  • Energy consumption: 77 W max vs 38 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.

Coway Airmega AP-1512HH Mighty spec sheetBlueair Blue Pure 311i Max spec sheet

Manufacturer pages: Coway Airmega AP-1512HH Mighty ↗ · Blueair Blue Pure 311i Max ↗

Common questions

Which is cheaper, the Coway Airmega AP-1512HH Mighty or the Blueair Blue Pure 311i Max?

Both list at the same price.

What is the biggest catch with the Coway Airmega AP-1512HH Mighty or Blueair Blue Pure 311i Max?

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 Blueair Blue Pure 311i Max?

For bedrooms, buy the Blueair Blue Pure 311i Max. Leads 2 of 2 rankable bedrooms specs. Noise levels: 23 dB vs 24 dB

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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