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Coway Airmega Mighty AP-1512HH

By the NestyFinds editorial team · Researched from manufacturer documentation, manuals and the AHAM Verifide directory · not bench-tested

361 ft² CADR 233 cfm CARB certified Filter ~12 mo 24–53 dB

The Coway Airmega Mighty AP-1512HH is a 12.3 lb portable room air purifier that Coway rates at 361 sq ft (4.8 air changes per hour) using a washable pre-filter, an activated-carbon deodorization filter, a filter Coway labels True HEPA, and a bipolar ionizer stage that has its own on/off button.

Coway Airmega Mighty AP-1512HH

Pros

  • Coway publishes a full coverage ladder in its spec table rather than one flattering number: 361 sq ft at 4.8 air changes/hr, 874 sq ft at 2 ACH and 1,748 sq ft at 1 ACH, all stated with an 8 ft ceiling assumption, so you can compare it against other units on a matched air-change basis instead of guessing. Read the spec table and not the marketing copy, which on the same one-sheet attaches the wrong air-change rate to the 361 sq ft figure.
  • The electronic stage is defeatable. The manual documents a dedicated Ionizer button ("Use this button to turn the ionizer on or off") and Coway support states "The ionizer is optional and can be turned on / off", so the unit can be run as a mechanical device only: pre-filter, activated carbon and the filter Coway labels True HEPA, with the ion generator off. Coway does not document whether that stage is on or off at power-up, or whether the setting survives unplugging, so confirm it is off after each power cycle.
  • Only two consumables per year: Coway specifies the pre-filter as washable every 2-4 weeks and reusable, leaving the deodorization filter (6 months) and HEPA filter (1 year), both sold as a single set under SKU 3304899, with separate Odor and HEPA indicator LEDs and a reset button to track them.

Cons

  • The CADR figures are Coway's own, not third-party verified. Coway does not appear as a brand anywhere in the AHAM Verifide directory of certified room air cleaners - 58 brands are listed and none is Coway or Airmega - so the 233/246/240 numbers cannot be cross-checked against an independent lab the way a listed brand's can.
  • Coway's own documents give three different noise figures. The current product page states 24 ~ 53 dB(A); the AP-1512HH one-sheet spec table states 24.4 ~ 55.1 dB(A); and a marketing line on that same one-sheet claims 22 dB(A) at the lowest airflow speed. Only the 22 dB(A) marketing figure is tied to a named fan speed, and it does not match either spec table, so no figure here is both speed-attributed and corroborated.
  • Replacement filters are gated by serial number. Coway states that only units whose serial contains 02E90, 02FI6 or 02EMY after the first three digits accept the 200M & AP-1512HH filter set, and gives an explicit example of a serial that does not - so the standard filter set is not guaranteed to fit every unit sold under this model name.
  • The ionizer stage is documented less completely than the rest of the unit. CARB classifies this model as an "Electronic" air cleaner, the category for devices with an ionizing stage, and Coway publishes no measured ozone output for it - only a statement that it complies with the 0.050 ppmv ceiling. Coway also never states whether the ionizer is on or off at power-up or whether the setting persists after unplugging. The headline 99.999% / 0.01 micron figure is a whole-unit chamber removal rate obtained with that stage running, so it does not describe the unit with the ionizer switched off.

Our editorial rating, not a lab measurement. Four documented filtration stages with an ionizer that has its own on/off button, a washable pre-filter that is not a recurring purchase, a coverage ladder published at three separate air-change rates against an explicit 8 ft ceiling assumption, only two replaceable consumables a year, and a published 77 W figure - weighed against CADR that is manufacturer-published with no AHAM Verifide listing to check it, three mutually inconsistent noise figures across Coway's own documents, marketing copy that attaches the wrong air-change rate to the 361 sq ft coverage figure, a headline 99.999% / 0.01 micron number that is a whole-unit chamber removal rate obtained with the ionizer running and carried by a footnote covering nineteen models, no measured ozone output for a unit CARB classifies as Electronic, no documented ionizer state at power-up, a serial-number restriction on the replacement filter set, and the absence of app control or a documented child lock.

Verdict

The Coway Airmega Mighty AP-1512HH is a four-stage unit - washable pre-filter, activated-carbon deodorization filter, a filter Coway labels True HEPA, and a bipolar ionizer stage with a dedicated on/off button - that Coway rates at 233 smoke / 246 dust / 240 pollen CADR and 361 sq ft at 4.8 air changes per hour, with a published 77 W draw and a 12.3 lb body. Those CADR figures are manufacturer-published rather than AHAM Verifide; Coway does not appear in the AHAM directory at all. CARB lists the unit as an "Electronic" air cleaner under executive order G-16-011, the classification used for devices with an ionizing stage, and Coway publishes no measured ozone output for it - only a statement of compliance with the 0.050 ppmv ceiling. Coway's own documents also disagree with each other on noise, on stage count and on how the 361 sq ft coverage figure is labelled, so read the specification tables rather than the marketing copy.

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Is it the right one for you?

Who it's for

  • You are treating a bedroom or home office of roughly 300-360 sq ft. You want the room's air turned over about once every 12.5 minutes, which is what Coway's 361 sq ft / 4.8 ACH rating describes. If the room is a child's room, note that CARB lists this model as an "Electronic" air cleaner because of its ion-generating stage, that Coway publishes no measured ozone output figure for it, and that Coway does not document whether that stage is on or off at power-up - press the Ionizer button to switch it off and confirm it is off after each power cycle.
  • You are buying in California and want to check the CARB entry yourself: the AP-1512HH and AP-1512HH[W] appear under executive order G-16-011, notified 2016-01-04, classified type "Electronic". Read that as context, not as an advantage - CARB certification is required of essentially every air cleaner sold in California, so every alternative you are considering is on the same list. What is worth knowing is the "Electronic" classification, which is the category CARB uses for devices with an ionizing stage, and which caps ozone emission at 0.050 ppm; Coway's newer Airmega models are listed as "Mechanical".
  • You want the ion-generating stage to be defeatable rather than fixed, so you can run mechanical filtration only - accepting that you will need to confirm its state after each power cycle, because Coway does not document the default - and you want a physical control panel rather than a phone app.

Who should skip it

  • You are choosing between units on independently verified CADR - Coway is absent from the AHAM Verifide directory entirely, so if third-party verification is your decision criterion, buy from a brand that is listed there (Winix, Blueair, Levoit, Honeywell, Fellowes and GermGuardian all appear in the directory).
  • You want app control, scheduling from your phone, remote filter-life readout or voice assistants - this unit has no Wi-Fi and no app at all. Coway's own AP-1512HHS is the connected version of the same body, and that is the model to buy instead.
  • You are treating an open-plan living area well beyond 361 sq ft at a meaningful air-change rate. The 1,748 sq ft figure on retail listings is the 1 air change per hour number, so a room that size gets one turnover an hour rather than the 4.8 the 361 sq ft rating describes. If you want the higher turnover rate across a larger space, that means a higher-CADR unit or more than one unit. For smoke-event guidance specifically, check EPA or your state air agency rather than a product page.

Specifications

How this coverage figure is stated

4.8 ACH. Coway publishes three figures from the same unit and labels each one in its specification table: 361 sq ft at 4.8 air changes/hr, 874 sq ft at 2 air changes/hr, and 1,748 sq ft at 1 air change/hr. Coway's footnote states all three assume an 8 ft ceiling, and that its headline coverage area is "based on an area where the air cleaner can make two air changes per hour". The 1,748 sq ft number used in retail titles is the 1-ACH figure. Coway's marketing copy on that same one-sheet is not consistent with its own spec table: a feature blurb states the unit "wraps every inch of a 361-square-feet room in clean air up to two times per hour", which attaches the 2-ACH label to the figure the spec table assigns to 4.8 ACH. The spec-table labelling is what is used here.

Always compare two purifiers at the same air-change rate; manufacturers pick different ones and the headline square footage is not otherwise comparable.

Coway Airmega Mighty AP-1512HH — documented specifications
CADR - Smoke 233
Coverage at 4.8 air changes/hr 361 ft2 (34 m2) - cleans the area once every 12.5 minutes
CARB certification Certified. Brand Coway, model number AP-1512HH and AP-1512HH[W], type Electronic, date notified 2016-01-04, executive order G-16-011. CARB certification is required of essentially every portable air cleaner sold in California, so this is a legal minimum rather than a distinguishing feature; the "Electronic" classification is the category CARB uses for devices with an ionizing stage.
Noise level Coway's own documents give three different figures: 24 ~ 53 dB(A) on the current product page 24.4 ~ 55.1 dB(A) in the one-sheet spec table; and a marketing line on that same one-sheet stating "The noise level at the lowest airflow speed setting is a quiet 22dB(A)". Only the 22 dB(A) figure is tied to a named fan speed, and it matches neither spec table. The 24 ~ 53 dB(A) product-page range is the one recorded on this page.
Power consumption 77 W (Coway publishes a single figure and does not label it maximum rated or typical)
Filter life - Deodorization filter 6 months
Replacement filter set SKU 3304899 or 3109905 or 3118096 Coway's listing describes the set as 1 HEPA filter and 2 deodorization filters
The full record: 28 more documented specifications — nothing is removed, it is just not what decides
CADR - Dust 246
CADR - Pollen 240
AHAM Verifide No Coway appears nowhere in the directory (58 brands, checked 2026-09-11), so every CADR figure above is Coway's own.
Coverage at 2 air changes/hr 874 ft2 (81 m2) - cleans the area once every 30 minutes
Coverage at 1 air change/hr 1,748 ft2 (162 m2) - cleans the area once every 60 minutes
Coverage assumption All coverage figures assume an 8 ft ceiling height (Coway footnote)
Coverage labelling conflict inside Coway's own one-sheet 361 ft² at 4.8 ACH per the spec table a blurb on the same PDF gives that same 361 ft² as a 2 ACH figure instead. We use the spec table.
Filter composition Pre-Filter + Deodorization Filter + True HEPA Filter + Bipolar Device (Coway's wording)
Filter efficiency (Coway's own claim) "99.97% of airborne allergens as small as 0.3 microns" Coway's own design statement; no third-party test of this filter is published.
Whole-unit 0.01 micron removal claim (not a filter rating) 99.999% down to 0.01 microns a chamber removal rate for the whole unit with the ionizer running, not a filter rating. The full caveat is in the notes below.
Filter life - HEPA filter 1 year
Filter life basis Each service life is based on 8-hour use at maximum air speed Coway notes actual cycles differ by environment
Pre-filter maintenance Cleaned with a vacuum or water every 2-4 weeks and reused the deodorization and HEPA filters cannot be washed or reused
Filter compatibility caveat Serial-dependent Coway states the 200M & AP-1512HH set fits only units whose serial contains 02E90, 02FI6 or 02EMY after the first 3 digits
Airflow control 5 stages (Auto - 1 - 2 - 3 - Eco), i.e. 3 manual fan speeds plus Auto and Eco
Timer 1, 4 or 8 hours (off timer)
Rated voltage 120 V~ 60 Hz Coway states the product is designed for use only in the United States, Canada and Mexico
Dimensions (W x H x D) 16.8 x 18.3 x 9.6 in (43 x 46 x 24 cm)
Product weight 12.3 lbs (5.5 kg)
Model numbers covered AP-1512HH / AP-1512HH(B) / AP-1512HH(W) - Airmega Mighty, Mighty(B), Mighty(W) colours black and white
Ozone statement Complies with 0.050 ppmv over 24 hours Coway's exact wording is “the maximum allowable concentration of ozone of 0.050 parts per million by volume (ppmv) in a 24-hour period”. It publishes no measured ozone output figure for this model.
Ionizer control Dedicated Ionizer button - "Use this button to turn the ionizer on or off" Coway support confirms "The ionizer is optional and can be turned on / off". Coway does not document the stage's state at power-up or whether the setting survives unplugging.
Air quality indicator Three colours - blue (clean), dark purple (polluted), red (highly polluted) can be switched off by holding the Ionizer button 3 seconds
Sensor sensitivity User-adjustable across 3 levels (sensitive / standard / insensitive) ships set to standard
Sensor maintenance Air quality sensor should be cleaned every 2 months Coway warns performance deteriorates without it
Clearance required At least 20 cm from walls or adjacent objects and 30-60 cm above the product
Limited warranty 1 year on any internal/functional parts 3 years on motor and electronic parts for this model (USA/Canada/Mexico, original retail purchase from an authorised seller)
Age/supervision note Coway states the appliance is not to be used by children under 8 or persons with reduced physical, sensory or mental capabilities, without supervision or instruction
15 things we could not verify — we leave these blank rather than estimate them
  • Coway is absent from the AHAM Verifide directory of certified room air cleaners: no Coway and no Airmega entry among the 58 brands listed, and no result for 'Coway', 'Airmega', 'AP-1512HH' or '1512' in any market (directory checked 2026-09-11). The 233 / 246 / 240 CADR figures therefore have no independent lab result behind them and cannot be compared like-for-like against a listed brand's numbers. Review blogs that describe this unit as 'AHAM Verified', or that quote AHAM-verified CADR values for it, are not supported by the directory itself.
  • Coway prints the CADR figures with no unit of measurement - the product page and one-sheet both read '233 (Smoke), 246 (Dust), 240 (Pollen)'. cfm is recorded here because it is the unit of the AHAM AC-1 CADR standard used in the US market, and because all three coverage figures derive exactly from a 233 cfm smoke CADR at an 8 ft ceiling. Coway itself never states the unit.
  • No measured ozone output figure is published for this model. Coway's manual states only that the product 'complies with the maximum allowable concentration of ozone of 0.050 parts per million by volume (ppmv) in a 24-hour period', which is a ceiling rather than a measurement, so there is no way to know how far under that limit the unit actually runs. A figure of 9 ppb circulates on third-party review sites; it appears in no Coway document and on no CARB page, and is not recorded here. The gap matters more than usual because CARB classifies this model as 'Electronic', the category for devices with an ionizing stage.
  • Coway does not document whether the ionizer is on or off at power-up, or whether the setting survives unplugging. The on/off button is documented and the manual states the unit starts in auto mode when powered on, but the ionizer default appears nowhere - not on the product page, not in the one-sheet, not in the 56-page US manual, not in the support articles. Anyone who wants mechanical filtration only has to check the stage after every power cycle instead of setting it once.
  • No child lock is documented. The 56-page US manual returns no mention of one, and neither the product page nor the one-sheet lists it; the manual carries only a supervision warning for children under 8. Recorded as not verified rather than absent, since only Coway's silence can be confirmed.
  • The 99.999% / 0.01 micron figure is not verified for this unit on its own. Coway attributes it to the complete four-stage system including the Vital Ionizer, and its footnote is a blanket note covering nineteen Airmega models as a group - 'Tested with Airmega Aim, 150, 160, AP-1216L, AP-1512HH, AP-1512HHS, 200M, Icon, IconS, 230, 240, 250, 250S, 250 Art, 300, 300S, 400, 400S, ProX' - measured by KCL in a 30 m3 chamber to SPS-KACA 002-132:2018 Modified at maximum fan speed. No result specific to the AP-1512HH is published, and none with the ionizer switched off.
  • 'True HEPA' is Coway's own label, not a certification. There is no public HEPA certification a manufacturer can obtain, this unit is absent from AHAM Verifide, and no third-party test of the filter is published - so the label and the 99.97% figure carry only Coway's word, and are attributed to Coway everywhere they appear on this page.
  • Coway's own documents give three different noise figures and none reconciles with the others: 24 ~ 53 dB(A) on the live product page, 24.4 ~ 55.1 dB(A) in the one-sheet spec table, and a marketing line on that same one-sheet reading 'The noise level at the lowest airflow speed setting is a quiet 22dB(A), similar to the sound of a ticking watch'. Only the 22 dB(A) line names a fan speed, and it matches neither table, so there is no figure that is both speed-attributed and corroborated. The 24 ~ 53 dB(A) product-page range is the one recorded on this page.
  • Coway's own documents also disagree on stage count and on CADR completeness. The manual's specification page lists the filter as 'Pre-Filter + Deodorization Filter + HEPA Filter' - three stages, no bipolar device - and gives CADR as '233 (Smoke)' only, omitting dust and pollen; the product page and one-sheet list four stages including the bipolar device and all three CADR values. This page follows the product page and one-sheet, so a buyer reading the manual will find a shorter stage list than the one described here.
  • Coway publishes 77 W as a single figure with no indication of whether it is maximum, rated or typical, and publishes no per-speed or standby draw, so running cost at the speed the unit is actually used cannot be worked out from Coway's data. An older Coway page for the related AP-1512HHC lists 74 W; that is a different model and is not used here.
  • Looking this model up on CARB's summary page (ww2.arb.ca.gov/list-carb-certified-air-cleaning-devices) may not find it: that page returns truncated content and shows only the newer AP-1512N and AP-1512HHC entries. The AP-1512HH and AP-1512HH[W] rows (type Electronic, notified 2016-01-04, EO G-16-011) are in the CARB applications table instead. Absence from the summary page is not absence from the certified list.
  • No Coway document states whether a spare or second filter set ships with the unit. The manual's 'Before Use' section only establishes that a working set arrives installed and bagged, so the first replacement set should be budgeted as a separate purchase.
  • The single filter-life figure carried on this page, 12 months, is the HEPA filter's. The deodorization filter is rated 6 months, so the two consumables in the same set do not share a schedule, and both service lives assume 8-hour daily use at maximum air speed - real-world intervals will differ.
  • No Energy Star certification, annual energy consumption or integrated energy factor is published for this model in any Coway document. Those fields appear in the AHAM directory for listed models, and this unit is not listed there.
  • ASIN B01728NLRG is the white variant, model designation AP-1512HH(W). Black and other colourways carry different ASINs, which are not enumerated here.

Our calculation, not the manufacturer’s

What 233 cfm of smoke CADR actually covers

Air changesWhen you want this rateRoom it suits
4.8×/hourWildfire smoke, allergy season, a room you are sensitive in364 ft²
4×/hourThe rate most allergy guidance assumes437 ft²
2×/hourGeneral freshening in a room without a specific problem874 ft²

Worked from the CDC/NIOSH relation air changes = (CADR × 60) ÷ (area × ceiling height), assuming an 8 ft ceiling. Change the ceiling height and these numbers change. AHAM’s own consumer rule — a smoke CADR of at least two-thirds of the room’s area — puts the ceiling for this unit at about 350 ft², which is the same arithmetic at roughly five air changes an hour. This CADR is the manufacturer’s own figure, not an AHAM Verifide measurement, so treat it as a claim rather than a verified result.

You can check this at home. In a closed room of the size in the first row, PM2.5 should halve about every nine minutes at top speed once its source stops. A monitor shows whether this unit manages that in your home. How to run the test

Ionizer and ozone

Ionizer: the AP-1512HH has a fourth, electronic stage that Coway calls the "Vital Ionizer" or "bipolar device". Coway's support article states plainly: "The ionizer is optional and can be turned on / off", and the user manual documents a dedicated control - "Ionizer On/Off - Use this button to turn the ionizer on or off" - so the unit can be run as a purely mechanical device: pre-filter, carbon filter and the filter Coway labels True HEPA. Coway does not, however, document anywhere whether that stage is on or off at power-up, or whether the setting survives unplugging, so the off state cannot be assumed without confirming it after each power cycle. Coway describes the mechanism as voltage applied to built-in needles that discharge electrons into the air, forming ions that attach to airborne particles so they agglomerate into larger particles that are easier to capture or that settle onto floors and surfaces. Ozone: Coway's manual carries one ozone statement - "This product complies with the maximum allowable concentration of ozone of 0.050 parts per million by volume (ppmv) in a 24-hour period" - alongside a reference to the Health Canada 2010 guideline of 0.020 ppmv over an 8-hour average. That is a compliance statement, not a measured emission figure: Coway publishes no ozone output number for this model. CARB independently lists the AP-1512HH as an "Electronic" air cleaner (the classification used for devices with an ionizing stage) certified under executive order G-16-011, and CARB certification requires ozone emission at or below 0.050 ppm. PlasmaWave is a Winix technology and is not present on this unit. There is no UV lamp and no UV mode on this model.

What you actually get

What the linked package includes
Capability What it needs Status
Filtration through the filter Coway labels True HEPA That filter, pre-installed in the unit (remove the plastic bag before first use) Included
Carbon / odour filtration Activated-carbon deodorization filter, pre-installed Included
Washable pre-filter Reusable pre-filter, pre-installed; cleaned with vacuum or water every 2-4 weeks Included
Air-quality sensor Built-in particle (dust) sensor with 3-colour indicator and 3 user-selectable sensitivity levels Included
Auto mode Built-in particle sensor; unit starts in auto mode when powered on and sets speed 1-3 automatically Included
Eco mode Built-in particle sensor; fan stops after 30 minutes with no pollution detected Included
Ionizer (bipolar device) and its on/off control Built-in Vital Ionizer stage with a dedicated front-panel Ionizer button Included
Ionizer state at power-up (whether the stage defaults on or off, and whether the setting persists) Not documented by Coway in the 56-page US manual, on the product page, in the one-sheet or in the support articles; the button exists but the default cannot be confirmed from any Coway source Not verified
Timer Front-panel timer button, 1 / 4 / 8 hours off-timer Included
Filter replacement indicator Separate Odor and HEPA LEDs plus reset button with forcible-reset mode Included
App / smart control (Wi-Fi, voice, remote scheduling) Not available on the AP-1512HH at any price - requires buying the separate connected model AP-1512HHS instead Sold separately
Child lock Not documented anywhere in Coway's 56-page US user manual, on the product page or in the one-sheet; the manual instead carries a supervision warning for children under 8 Not verified
Replacement filter set (for the first scheduled change) Airmega Mighty AP-1512HH & 200M Filter Set, SKU 3304899 / 3109905 / 3118096 - no spare set is documented as shipping with the unit Sold separately
Replacement pre-filter (if damaged rather than washed) Airmega 200M & AP-1512HH Pre-Filter, sold as its own Coway part Sold separately

Package contents vary by variant and seller. Check what is in the box on the Amazon listing before you buy. “Not verified” means the manufacturer does not document it either way — not that it is missing. “Not offered” is the other thing: the manufacturer does document it, and the answer is that this model does not have it.

Replacement filter

Full filter guide

Coway Airmega AP-1512HH replacement filter set

Part 3118096 / 3116999 / 3117063 / 3117062 / 3105422 / 3107167 · Coway's manual gives a per-filter table rather than a single number. Pre-filter - every 2~4 weeks, method CLEANING (it is washed and refitted, not replaced). Deodorization filter - every 6 months, method REPLACEMENT. The filter Coway labels "True HEPA" - every 1 year, method REPLACEMENT. The usage assumption is printed directly under the table: "Each service life is based on 8-hour use in maximum air speed." Coway adds: "The recommended filter replacement cycles may differ depending on the operating environment." Coway's store page repeats the same intervals as "Filter Life Expectancy: Custom Filter (6 Months), HEPA (1 Year)."

Which filter fits

Compared head to head

How we researched this

Checked against the AHAM Verifide directory, CARB's certified air-cleaner list and the manufacturer's own pages. We did not test this unit. Nothing here is a measurement of ours: every figure is either documented by the manufacturer or published by an independent standards or testing body, and where the two disagree this page says so.

Not verified for this model — 15 notes
  • Coway is absent from the AHAM Verifide directory of certified room air cleaners: no Coway and no Airmega entry among the 58 brands listed, and no result for 'Coway', 'Airmega', 'AP-1512HH' or '1512' in any market (directory checked 2026-09-11). The 233 / 246 / 240 CADR figures therefore have no independent lab result behind them and cannot be compared like-for-like against a listed brand's numbers. Review blogs that describe this unit as 'AHAM Verified', or that quote AHAM-verified CADR values for it, are not supported by the directory itself.
  • Coway prints the CADR figures with no unit of measurement - the product page and one-sheet both read '233 (Smoke), 246 (Dust), 240 (Pollen)'. cfm is recorded here because it is the unit of the AHAM AC-1 CADR standard used in the US market, and because all three coverage figures derive exactly from a 233 cfm smoke CADR at an 8 ft ceiling. Coway itself never states the unit.
  • No measured ozone output figure is published for this model. Coway's manual states only that the product 'complies with the maximum allowable concentration of ozone of 0.050 parts per million by volume (ppmv) in a 24-hour period', which is a ceiling rather than a measurement, so there is no way to know how far under that limit the unit actually runs. A figure of 9 ppb circulates on third-party review sites; it appears in no Coway document and on no CARB page, and is not recorded here. The gap matters more than usual because CARB classifies this model as 'Electronic', the category for devices with an ionizing stage.
  • Coway does not document whether the ionizer is on or off at power-up, or whether the setting survives unplugging. The on/off button is documented and the manual states the unit starts in auto mode when powered on, but the ionizer default appears nowhere - not on the product page, not in the one-sheet, not in the 56-page US manual, not in the support articles. Anyone who wants mechanical filtration only has to check the stage after every power cycle instead of setting it once.
  • No child lock is documented. The 56-page US manual returns no mention of one, and neither the product page nor the one-sheet lists it; the manual carries only a supervision warning for children under 8. Recorded as not verified rather than absent, since only Coway's silence can be confirmed.
  • The 99.999% / 0.01 micron figure is not verified for this unit on its own. Coway attributes it to the complete four-stage system including the Vital Ionizer, and its footnote is a blanket note covering nineteen Airmega models as a group - 'Tested with Airmega Aim, 150, 160, AP-1216L, AP-1512HH, AP-1512HHS, 200M, Icon, IconS, 230, 240, 250, 250S, 250 Art, 300, 300S, 400, 400S, ProX' - measured by KCL in a 30 m3 chamber to SPS-KACA 002-132:2018 Modified at maximum fan speed. No result specific to the AP-1512HH is published, and none with the ionizer switched off.
  • 'True HEPA' is Coway's own label, not a certification. There is no public HEPA certification a manufacturer can obtain, this unit is absent from AHAM Verifide, and no third-party test of the filter is published - so the label and the 99.97% figure carry only Coway's word, and are attributed to Coway everywhere they appear on this page.
  • Coway's own documents give three different noise figures and none reconciles with the others: 24 ~ 53 dB(A) on the live product page, 24.4 ~ 55.1 dB(A) in the one-sheet spec table, and a marketing line on that same one-sheet reading 'The noise level at the lowest airflow speed setting is a quiet 22dB(A), similar to the sound of a ticking watch'. Only the 22 dB(A) line names a fan speed, and it matches neither table, so there is no figure that is both speed-attributed and corroborated. The 24 ~ 53 dB(A) product-page range is the one recorded on this page.
  • Coway's own documents also disagree on stage count and on CADR completeness. The manual's specification page lists the filter as 'Pre-Filter + Deodorization Filter + HEPA Filter' - three stages, no bipolar device - and gives CADR as '233 (Smoke)' only, omitting dust and pollen; the product page and one-sheet list four stages including the bipolar device and all three CADR values. This page follows the product page and one-sheet, so a buyer reading the manual will find a shorter stage list than the one described here.
  • Coway publishes 77 W as a single figure with no indication of whether it is maximum, rated or typical, and publishes no per-speed or standby draw, so running cost at the speed the unit is actually used cannot be worked out from Coway's data. An older Coway page for the related AP-1512HHC lists 74 W; that is a different model and is not used here.
  • Looking this model up on CARB's summary page (ww2.arb.ca.gov/list-carb-certified-air-cleaning-devices) may not find it: that page returns truncated content and shows only the newer AP-1512N and AP-1512HHC entries. The AP-1512HH and AP-1512HH[W] rows (type Electronic, notified 2016-01-04, EO G-16-011) are in the CARB applications table instead. Absence from the summary page is not absence from the certified list.
  • No Coway document states whether a spare or second filter set ships with the unit. The manual's 'Before Use' section only establishes that a working set arrives installed and bagged, so the first replacement set should be budgeted as a separate purchase.
  • The single filter-life figure carried on this page, 12 months, is the HEPA filter's. The deodorization filter is rated 6 months, so the two consumables in the same set do not share a schedule, and both service lives assume 8-hour daily use at maximum air speed - real-world intervals will differ.
  • No Energy Star certification, annual energy consumption or integrated energy factor is published for this model in any Coway document. Those fields appear in the AHAM directory for listed models, and this unit is not listed there.
  • ASIN B01728NLRG is the white variant, model designation AP-1512HH(W). Black and other colourways carry different ASINs, which are not enumerated here.

Sources consulted

Other purifiers we have researched

All reviews