Coway Airmega Mighty2 Air Purifier (AP-1512N)

The successor to the popular Mighty: filter-only, listed by CARB as mechanical, with its ionizer gone. RTINGS and HouseFresh measured its CADR within 10% of Coway’s 240. Its HEPA test is Coway’s own, and AHAM has no Coway entry.

Best for A bedroom or living room up to about 360 sq ft, for a buyer who wants a mechanical-only purifier from a large maker with a one-filter yearly change.

Our rating: Good (4.2 of 5)
Price range: Mid-range
Verified marks: Listed by CARB as a mechanical air cleaner (AP-1512N)
Size: One purifier for rooms up to about 360 sq ft by our rule (Coway’s smoke CADR is 240; two testers measured 237 and 260 cfm); 15.2 lb
Made in: Designed in South Korea, made in China (HouseFresh)

approx. $270

See it on Coway’s site → (opens in a new tab)

We are not affiliated with Coway. This link goes to the maker’s own page, with no tracking code. How we're funded.

Also sold at Amazon ($270) .

Reader ratings & reviews

– out of 5

Loading ratings…

Have this product? Please rate it.

Reviews are personal experiences, not research, and they never change our quality ratings. Every review is read by our team before it appears.

How we evaluated it

How it scores Our rating, metric by metric Good, 4.2 of 5

Filtration 30% of the rating 4 of 5

Coway’s smoke CADR of 240 was matched by RTINGS (237 cfm) and HouseFresh (260 cfm), but its 99.97% HEPA figure rests on an unpublished SGS test at “speed level 1”, a low speed, and HouseFresh says the filter is HEPA-grade only in sleep mode.
Adds nothing to the air 20% of the rating 5 of 5

CARB lists the AP-1512N as mechanical (orders G-26-042 to 044) and HouseFresh confirms Coway removed the ionizer the older Mighty had.
Independent testing 20% of the rating 4 of 5

RTINGS and HouseFresh, which take no money from Coway, both measured its CADR and noise, while CARB is a certification Coway pays for and AHAM does not list it.
Trust 10% of the rating 4 of 5

We found no recall, Prop 65 notice, warning letter or lawsuit about Coway’s purifiers, but its Wirecutter and HEPA claims could not be checked.
Running cost & value 20% of the rating 4 of 5

At about $270 it costs about $1.12 per CFM with one $69.99 filter a year, and HouseFresh counts $146 a year to run it at top speed all day.

The rating, 4.2 of 5, is the weighted average of these scores. See how we rank air purifiers and our standard.

Where to buy Stores and the prices we saw 1 store

Amazon (opens in a new tab) approx. $270. White, model AP-1512N(W); a Beige listing (B0GT2JSND6) is also $269.99. Sold and shipped by Amazon.com, and the listing quotes a 3-year warranty. We found no other major US store listing the Mighty2 (Best Buy, Target, Walmart, Costco and Home Depot, searched 2026-10-23).

Prices as we saw them on October 23, 2026. They change often. These links carry no tracking code and earn us nothing.

What it’s made of What touches your food, water, skin or air 3 materials

Max2 filter: HEPA-grade particle media bonded to activated carbon pellets, in one cartridge (the media material and carbon weight are not stated)
Washable pre-filter that slides out from the side
Plastic housing and a brushless DC fan motor (resin types not stated); no ionizer, UV or scent stage

Who tested it What each test found, and who paid for it 5 tests

Independent RTINGS (buys its test units; earns membership and affiliate income) August 26, 2026

Measured a PM1 CADR of 237 cfm at top speed (370 sq ft) and 165 cfm at the highest speed under 45 dBA, and noise of 31.1 to 57.2 dBA. It lists the filter as HEPA certified under IEST-RP-CC007, without saying it tested the filter itself. Open ↗ (opens in a new tab)
Independent HouseFresh (buys its test units; earns affiliate income) October 20, 2026

Cleared a 728 cubic foot test room of incense smoke in 23 minutes at top speed (an estimated PM1 CADR of 260 cfm), 35.9 to 56.9 dBA, 49 W at top speed. Says Coway removed the ionizer and that the filter is HEPA-grade only in sleep mode. Open ↗ (opens in a new tab)
Paid certification CARB (certification; Coway pays the lab) March 6, 2026

Listed as Mechanical (orders G-26-042, G-26-043, G-26-044), so it passed the state’s ozone limit. It says nothing about particle removal. Open ↗ (opens in a new tab)
Maker’s own test Coway (maker)

Its product page says the filter captures over 99.97% of 0.3 µm particles, lists smoke, dust and pollen CADRs of 240, 242 and 249, and calls the Mighty2 a 2026 Wirecutter Top Pick. AHAM does not list the model. Open ↗ (opens in a new tab)
Maker’s own test Coway (maker; labs SGS and KCL, named on its Amazon listing)

Footnotes say SGS found the HEPA filter complies with IEST-RP-CC007 at speed level 1 (the sample only), and that KCL tested ultrafine-particle capture, acetic acid reduction and its carbon filter. Nichinichi Pharmaceutical tested the allergen media. None of the reports is published. Open ↗ (opens in a new tab)

Who paid, and why it matters

Independent The tester took no money from the maker for it: a consumer group, a journalist, a university or a regulator.
Paid certification An outside lab or certifier tested or listed it, and the maker paid for that.
Maker’s own test A lab report or certificate of analysis the maker commissioned and published.

A certification is a floor, not a verdict: it checks what its program checks and nothing else. We weigh tests by someone with no stake in the result most.

What people ask Worries raised online and elsewhere, and what we found 6 questions

Does it still have the old Mighty’s ionizer?: No. The older Mighty (AP-1512HH) has an ionizer button in its manual (opens in a new tab) and CARB lists it as Electronic. The Mighty2’s filter list has no ion device and CARB lists it as Mechanical. HouseFresh (opens in a new tab) says Coway removed the ionizer without hurting performance.
Is it true HEPA at full speed?: Coway’s page says over 99.97% at 0.3 µm. Its Amazon listing says the filter complies with IEST-RP-CC007 “at speed level 1” as tested by SGS, and that the report reflects only the sample tested; no report is published. HouseFresh says the filter reaches HEPA grade only in sleep mode, since faster air carries more particles through any filter, and that a less restrictive filter is part of why it clears a room so fast. RTINGS calls the filter independently HEPA certified under that standard but does not say it tested it.
Does it really clean 1,800 sq ft?: No. That is one air change an hour. By the measured CADR it suits about 360 sq ft by our rule, or about 390 sq ft at five changes an hour by HouseFresh’s (opens in a new tab) arithmetic.
Will it last like the old Mighty?: The Mighty2 is too new for much Reddit data. RedditRecs (opens in a new tab) ranks the older Mighty first among purifiers on Reddit, 86% positive from 90 users, praising its durability, allergen control and quiet low speeds, with loudness on high the main complaint. RTINGS and HouseFresh both say it does better at quiet fan speeds than the older Mighty. Coway’s manual (opens in a new tab) gives 3 years on the motor and electronic parts and 1 year on other internal parts.
Did Wirecutter really pick it?: Coway’s page calls it a 2026 Wirecutter Top Pick. We could not open Wirecutter’s page, so we did not count it.
Does the filter contain PFAS? Some HEPA media uses PTFE.: Coway does not say what its HEPA media or housing is made of, and we found no published PFAS test of purifier filter media from any maker. We could not confirm either way.

Why we chose it What put it on our list 4 points

CARB lists the Mighty2 (AP-1512N) as Mechanical (notified 2026-03-06, orders G-26-042, G-26-043 and G-26-044). By CARB’s definition that means filtration only, with no ozone or ions.
Coway’s filter list has a washable pre-filter and one combined activated carbon and HEPA filter, and no ion device. HouseFresh confirms Coway removed the ionizer of the older Mighty, whose CARB listing is Electronic.
Coway publishes a CADR: smoke 240, dust 242, pollen 249. RTINGS measured a PM1 CADR of 237 cfm and HouseFresh 260 cfm, so the figure holds up. Our two-thirds rule turns the smoke figure into about 360 sq ft.
Running cost is simple: one Max2 filter set a year at $69.99, plus a pre-filter you wash. Coway rates it at 19 to 50 dB and 56 W; RTINGS measured 31.1 to 57.2 dBA.

Trade-offs What to weigh before you buy 5 points

The CADR is Coway’s. AHAM’s directory lists Levoit, Medify and Oransi but no Coway (searched 2026-10-23), so there is no certified figure. The independent measurements are the check.
Coway’s headline room size, 1,800 sq ft in an hour, counts one air change an hour. By the CADR it is a room of about 360 sq ft.
Coway’s Amazon listing says the HEPA filter complies with IEST-RP-CC007 “at speed level 1”, as tested by SGS, and that the report covers only the sample tested. The report is not published. HouseFresh says the filter is HEPA-grade only in sleep mode, because air moves faster through it on higher speeds.
It is new: CARB listed it in March 2026. Coway does not say how much carbon the filter holds, and HouseFresh notes the carbon and particle filters are bonded, so you replace both together.
Older Mighty models have an ionizer. Check that you are buying the Mighty2 (AP-1512N), or the AP-1512HHC, whose filter list has no ion device.

What to know Details worth knowing first

Coway’s Mighty has been a standard recommendation for years, and the Mighty2 replaces it. The change that matters to us is what is gone: the old model had a bipolar ion device, which CARB files as an electronic cleaner. The Mighty2 lists only a washable pre-filter and one carbon and HEPA filter, and CARB files it as mechanical. That is the filter-only design our air purifier guide points to.

Coway publishes a CADR, and unlike most premium makers it has been checked by people who buy what they test. RTINGS measured 237 cfm and HouseFresh 260 cfm against Coway’s 240, though AHAM’s directory has no Coway entry. Use the smoke figure to size the room: about 360 sq ft by our rule, not the 1,800 sq ft Coway quotes for one air change an hour.

It is a sound mid-priced choice, with a short, cheap filter routine. Its gaps are a HEPA test with no named lab and a filter HouseFresh says is HEPA-grade only at low speed. See indoor pollutants for what a particle filter will not remove.

What we checked Each claim, and how sure we are of it 5 checks

How Coway Airmega Mighty2 Air Purifier (AP-1512N) measures up against our air purifiers criteria
What we checked	What we found
True HEPA Maker’s claim	Coway’s page says it captures over 99.97% of 0.3 µm particles; its Amazon listing says the filter complies with IEST-RP-CC007 at speed level 1, as tested by SGS. No report is published, and HouseFresh says the filter is HEPA-grade only in sleep mode.
No ozone (CARB listing) Verified	CARB’s list has Coway Airmega Mighty2, model AP-1512N, as type Mechanical, notified 2026-03-06 (orders G-26-042, G-26-043 and G-26-044). The filter list on Coway’s page has no ion device.
Right size (CADR) Verified	Coway lists smoke 240, dust 242 and pollen 249. RTINGS measured 237 cfm and HouseFresh 260 cfm (PM1, incense smoke). No Coway entry in AHAM’s directory. Two-thirds rule: about 360 sq ft.
Carbon for gases Maker’s claim	The Max2 filter combines activated carbon pellets and HEPA-grade media. The amount of carbon is not stated.
Running cost and noise Maker’s claim	Max2 filter set $69.99, rated 1 year; the pre-filter is washable. Coway says 19 to 50 dB and 56 W; RTINGS measured 31.1 to 57.2 dBA and HouseFresh 35.9 to 56.9 dBA, 49 W at top speed.

What the labels mean

Verified We opened an independent record that confirms it: a certifier’s listing, a regulator’s list or a lab report. It is linked under Sources.
Maker’s claim The maker says so on its own page or label. We read it but found no independent record.
Not verified We looked and could not confirm it, or the maker does not say. Treat it as unknown.

Sources Where our facts come from 11 sources

Coway Airmega Mighty2 product page: price, CADR, filter and noise. Maker’s page. Price and specifications as seen on 2026-10-23, including its Wirecutter Top Pick claim. Open ↗ (opens in a new tab)
Coway Airmega Mighty2 Amazon listing (White, AP-1512N(W)). Independent source. Price $269.99, sold and shipped by Amazon.com, first available 2026-03-11. Its footnotes name SGS and KCL as the labs behind Coway’s HEPA, gas and ultrafine claims. Open ↗ (opens in a new tab)
Coway Airmega Mighty2 AP-1512N user manual. Maker’s page. Lists a pre-filter and a Max2 filter, 56 W, and no ionizer or ozone statement. The limited warranty gives 3 years on motor and electronic parts and 1 year on other internal parts. Open ↗ (opens in a new tab)
RTINGS: Coway Airmega Mighty2 review. Test report. RTINGS buys its units and earns membership and affiliate income. Open ↗ (opens in a new tab)
HouseFresh: Coway Airmega Mighty2 review. Test report. HouseFresh bought the unit and earns affiliate commissions. Open ↗ (opens in a new tab)
CARB list of certified air cleaning devices (search for Coway). Certifier or regulator listing. AP-1512N is type Mechanical. The older AP-1512HH is type Electronic; AP-1512HHC is Mechanical. Open ↗ (opens in a new tab)
AHAM Verifide directory (search for Coway). Certifier or regulator listing. A search tool with no link for a single listing. A search for Coway returned no listing on 2026-10-23. Open ↗ (opens in a new tab)
RedditRecs: Coway Airmega Mighty AP-1512HH on Reddit. Independent source. About the older model. A third-party site that summarizes Reddit comments with software and earns Amazon affiliate fees. The samples are small. Open ↗ (opens in a new tab)
Coway Airmega Mighty (AP-1512HH) product page. Maker’s page. Lists a pre-filter, deodorization filter, HEPA filter and a bipolar device. Open ↗ (opens in a new tab)
Coway Airmega Mighty AP-1512HH US manual (rev. 2025-11-13). Maker’s page. Has an Ionizer On/Off button and an ozone statement of under 0.050 ppmv. Open ↗ (opens in a new tab)
California AG Prop 65 notice search: Coway. Certifier or regulator listing. No matching records on 2026-10-23, nor for Airmega. CPSC’s recall search also returned none for Coway. Open ↗ (opens in a new tab)

Alternatives Other options to compare 3 options

Levoit Eleva 500X About $260, with an AHAM-listed smoke CADR of 301 (about 450 sq ft) and a CARB mechanical listing. It is new: Amazon lists it as first available on 2026-10-18, and no one has tested it yet.
Oransi Mod+ About $700, with an AHAM smoke CADR of 363 and a HEPA and carbon filter in one. For rooms up to about 540 sq ft.
Coway Airmega 400 (opens in a new tab) About $650, with a Coway smoke CADR of 328 and a CARB mechanical listing. A larger-room step up, but we have not reviewed it.

Reader ratings & reviews

How we evaluated it

Weekly research digest