Head to head

Coway Airmega AP-1512HH Mighty vs Honeywell HPA300 HEPA Air Purifier

They split the 6 rankable specs evenly, so cost decides it: Coway Airmega AP-1512HH Mighty costs $20 less.

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); Honeywell HPA300 HEPA Air Purifier lists 300 CFM (Smoke), 320 CFM (Dust), 300 CFM (Pollen) (Honeywell 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); Honeywell HPA300 HEPA Air Purifier lists 465 sq ft (4.8 air changes/hr) / 2,250 sq ft (1 air change/hr) (Honeywell sheet, 2026-09-02).
Room size: Coway Airmega AP-1512HH Mighty lists Bedrooms, home offices, medium living rooms (Coway sheet, 2026-09-02); Honeywell HPA300 HEPA Air Purifier lists Extra large rooms, master suites, open spaces up to 465 sq ft (4.8 ACH) (Honeywell 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); Honeywell HPA300 HEPA Air Purifier lists Type A Activated Carbon Pre-filter + 3× Type R True HEPA filters (Honeywell sheet, 2026-09-02).
Filter life: Coway Airmega AP-1512HH Mighty lists 12 months (True HEPA) / 6 months (Carbon) (Coway sheet, 2026-09-02); Honeywell HPA300 HEPA Air Purifier lists 3 months (Pre-filter) / 12 months (True HEPA filters) (Honeywell sheet, 2026-09-02).

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

Coway Airmega AP-1512HH Mighty

$2293 spec wins

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Honeywell HPA300 HEPA Air Purifier

$2493 spec wins

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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: 3 to 3

Tied overall. Coway Airmega AP-1512HH Mighty is cheaper.

The 6 rankable overall specs split 3 to 3.
Saves $20 at list price.

Check first: the Coway Airmega AP-1512HH Mighty has no Wi-Fi app.

3 Coway Airmega AP-1512HH Mighty6 rankable of 11 specsHoneywell HPA300 HEPA Air Purifier 3

Deal-breakers

tick what would make you walk away

No Wi-Fi approw
No schedules or remote control from your phone.
Trips:Coway Airmega AP-1512HH Mighty · Smart Auto Mode + Eco ModeClear:Honeywell HPA300 HEPA Air Purifier · No (manual touch controls with 2/4/8 hr…
Over 55 dB on highrow
Louder than normal conversation at full speed.
Clear:Coway Airmega AP-1512HH Mighty · 24 dB (Low) – 53 dB (Turbo high)Trips:Honeywell HPA300 HEPA Air Purifier · 38 dB (Low) – 58 dB (Turbo)
Under 1,000 sq ft coveragerow
Undersized for an open-plan living area.
Trips:Coway Airmega AP-1512HH Mighty · 361 sq ftTrips:Honeywell HPA300 HEPA Air Purifier · 465 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)

Honeywell

300 CFM (Smoke), 320 CFM (Dust), 300 CFM (Pollen)

Coverage area

Coway

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

Honeywell

465 sq ft (4.8 air changes/hr) / 2,250 sq ft (1 air change/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

Honeywell HPA300 HEPA Air Purifier

Upfront list price$249

3-Yr 3x HRF-R3 HEPA + 4x Pre-filters (Annual full filter set (~$65/yr))+$195

3-Year Estimated Total$444

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)

Honeywell

Front grille intake: can back up close to baseboards

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)

Honeywell

30 dB lowest fan speed (noticeable background white noise)

Unit Footprint & Dimensions

Coway

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

Honeywell

Large commercial-grade shell (20.8 × 22.3 × 10.8 in; 17.0 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.

Honeywell: 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 Airmega AP-1512HH Mighty$2293 wins

Honeywell HPA300 HEPA Air Purifier$2493 wins

Performance Filters Usability & Smart Design & Ownership

11 of 11 attributes differ. Identical rows are dimmed.

Performance

leads 2-0

Performance specifications. Middle column is Coway Airmega AP-1512HH Mighty, right column is Honeywell HPA300 HEPA Air Purifier.
CADR	233 CFM (Smoke), 246 CFM (Dust), 240 CFM (Pollen)	300 CFM (Smoke), 320 CFM (Dust), 300 CFM (Pollen) (wins this row: higher)
Room size	Bedrooms, home offices, medium living rooms	Extra large rooms, master suites, open spaces up to 465 sq ft (4.8 ACH)
Coverage area	361 sq ft (4.8 air changes/hr) / 874 sq ft (2 air changes/hr)	465 sq ft (4.8 air changes/hr) / 2,250 sq ft (1 air change/hr) (wins this row: higher)

Filters

leads 1-0

Filters specifications. Middle column is Coway Airmega AP-1512HH Mighty, right column is Honeywell HPA300 HEPA Air Purifier.
Filter types	4-Stage: Washable Pre-filter + Deodorization Carbon + True HEPA + Vital Ion	Type A Activated Carbon Pre-filter + 3× Type R True HEPA filters
Filter life	12 months (True HEPA) / 6 months (Carbon) (wins this row: higher)	3 months (Pre-filter) / 12 months (True HEPA filters)

Usability & Smart

leads 1-0

Usability & Smart specifications. Middle column is Coway Airmega AP-1512HH Mighty, right column is Honeywell HPA300 HEPA Air Purifier.
Noise levels	24 dB (Low) – 53 dB (Turbo high) (wins this row: lower)	38 dB (Low) – 58 dB (Turbo)
Energy consumption	77 W max (Energy Star verified, 4.9W in Eco mode)	130 W max power consumption
Smart features	Smart Auto Mode + Eco Mode (no Wi-Fi app)	No (manual touch controls with 2/4/8 hr auto-off timer)
Air quality sensors	Air quality particle sensor with 3-color real-time LED indicator	No automated air quality sensors (filter replacement indicators)

Design & Ownership

2 differences

Design & Ownership specifications. Middle column is Coway Airmega AP-1512HH Mighty, right column is Honeywell HPA300 HEPA Air Purifier.
Weight	12.3 lb (5.6 kg) (wins this row: lower)	17.0 lb (7.7 kg)
Warranty	3 years limited manufacturer warranty	5 years manufacturer limited warranty (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.

Coway Airmega AP-1512HH Mighty source Honeywell HPA300 HEPA Air Purifier source

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

Honeywell HPA300 HEPA Air Purifier

Extra-large room True HEPA air purifier with Turbo Clean mode, dual-stage filtration, and AHAM Verifide CADR ratings for large rooms.

Powerful high-volume CADR (300+ CFM) for large rooms up to 465 sq ft
Certified True HEPA captures 99.97% of airborne particles
Durable workhorse build with touch-button controls

What you give up

High power consumption (up to 130W on Turbo)
No Wi-Fi app or smart automated air quality sensors

Full Honeywell HPA300 HEPA Air Purifier specs →

Best for each use

Bedrooms

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

For bedrooms, buy the Coway Airmega AP-1512HH Mighty.

Leads 2 of 2 rankable bedrooms specs.
Noise levels: 24 dB vs 38 dB
Weight: 12.3 lb vs 17.0 lb
It is also $20 cheaper.

Big rooms & allergies

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

For big rooms & allergies, buy the Honeywell HPA300 HEPA Air Purifier.

Leads 2 of 3 rankable big rooms & allergies specs; Coway Airmega AP-1512HH Mighty takes 1.
CADR: 300 CFM vs 233 CFM
Coverage area: 465 sq ft vs 361 sq ft
Coway Airmega AP-1512HH Mighty is $20 cheaper. Pay the difference only if cadr matters to you.

Low running cost

Cheap to own: filter life, power draw, warranty

Tied on low running cost. Coway Airmega AP-1512HH Mighty is cheaper.

The 2 rankable low running cost specs split 1 to 1.
Saves $20 at list price.

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 sheet Honeywell HPA300 HEPA Air Purifier spec sheet

Manufacturer pages: Coway Airmega AP-1512HH Mighty ↗ · Honeywell HPA300 HEPA Air Purifier ↗

Common questions

Which is cheaper, the Coway Airmega AP-1512HH Mighty or the Honeywell HPA300 HEPA Air Purifier?

Coway Airmega AP-1512HH Mighty costs $20 less at list price.

What is the biggest catch with the Coway Airmega AP-1512HH Mighty or Honeywell HPA300 HEPA Air Purifier?

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 Honeywell HPA300 HEPA Air Purifier?

For bedrooms, buy the Coway Airmega AP-1512HH Mighty. Leads 2 of 2 rankable bedrooms specs. Noise levels: 24 dB vs 38 dB

What cannot be compared from spec sheets?

Of the 11 specs tracked here, 5 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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