Air Purifiers / Winix 5510 (successor to the 5500-2) vs Coway Airmega AP-1512HH Mighty
Winix 5510 (successor to the 5500-2) vs Coway Airmega AP-1512HH Mighty
Winix 5510 (successor to the 5500-2)
The best verified CADR per dollar here, if you are comfortable turning PlasmaWave off.
Wins overall by 0.9 points
Quick Verdict
The Winix 5510 (successor to the 5500-2) is the stronger all-round pick, ahead by 0.9 points. The best verified CADR per dollar here, if you are comfortable turning PlasmaWave off.
The Winix 5510 (successor to the 5500-2) and Coway Airmega AP-1512HH Mighty are both closely matched air Purifier models, and the Coway Airmega AP-1512HH Mighty is $20 cheaper than the Winix 5510 (successor to the 5500-2) ($239.99 vs $259.99). On Verified Clean-Air Delivery, the Winix 5510 (successor to the 5500-2) leads (9.0 vs 6.5/10) — how much air the unit actually cleans per minute, weighted heavily toward AHAM Verifide smoke CADR over manufacturer-published figures. Self-reported CADR scores below Verifide CADR, and 'no CADR published at all' scores below both. On Sensor Quality, the Winix 5510 (successor to the 5500-2) leads (7.0 vs 5.0/10) — whether there is a real laser particle sensor resolving PM1/PM2.5/PM10 with numeric output, a vaguer 'air quality' index, an inference from a cheap VOC element, or no sensor and therefore no auto mode at all. On Coverage-Claim Honesty, the Winix 5510 (successor to the 5500-2) leads (8.5 vs 7.0/10) — the trap dimension for this category. Almost every brand derives its headline square footage from ONE air change per hour, which does close to nothing for smoke, pollen or wildfire particulate — the useful standard is 4.8 air changes an hour, and it is typically a fifth of the number on the box. A high score means the manufacturer publishes the 4.8-ACH figure prominently and it survives comparison with the AHAM Verifide room size; a low score means a big number with no stated air-change basis, or no CADR at all to derive one from.. Overall, the Winix 5510 (successor to the 5500-2) scores 7.8/10 across our 8 scoring categories versus 6.9/10 for the Coway Airmega AP-1512HH Mighty. Below, we break down the full spec sheet, category-by-category scores, and exactly who should buy which one.
Side-by-Side Comparison
| Spec | Winix 5510 (successor to the 5500-2) | Coway Airmega AP-1512HH Mighty |
|---|---|---|
| Price | $259.99 | $239.99 |
| Release Year | 2024 | 2013 |
| AHAM Verifide CADR (Smoke / Dust / Pollen) (CFM) | AHAM Verifide: smoke 253 / dust 252 / pollen 247 CFM (ahamdir.com, model 5510; the 5520 and 5530 share the identical certification). Genuinely Verifide — Winix is one of the six consumer brands with current directory entries. | Coway publishes smoke 233 / dust 246 / pollen 240 CFM itself. NOT AHAM Verifide as of August 2026: Coway does not appear in the AHAM Verifide directory's brand index at all, so no Coway model — including this one — currently carries a Verifide CADR. These are manufacturer figures. |
| AHAM Verifide Room Size (4.8 ACH) (ft²) | 392 ft² (AHAM Verifide suggested room size at 4.8 air changes per hour) | Not listed in the AHAM Verifide directory (August 2026). Coway's own 4.8-ACH figure is 361 ft². |
| Coverage Claim & Its Air-Change Basis | Winix leads with "AHAM Verifide 392 ft²" and states the 4.8-ACH basis in a visible footnote, then adds "cleans up to 1,882 ft² in 1 hour" as the secondary figure. That ordering is the right way round and almost nobody else here does it. | Coway's own spec table gives "1 air change/hr 1,748 ft² / 2 air changes/hr 874 ft² / 4.8 air changes/hr 361 ft²" — the most complete ladder any brand here publishes. The retail listing headline is the 1,748 ft² number. |
| Filter Grade (True HEPA / HEPA-Type / H13) | 4-stage: washable fine-mesh pre-filter, AOC pelletised activated-carbon filter, True HEPA rated 99.99% (Winix cites KCL report CT24-072905E under a modified SPS-KACA 002-132:2022 method — note that is a Korean test standard, not EN 1822), and PlasmaWave. | Four stages: washable pre-filter, deodorisation (activated carbon) filter, True HEPA filter rated 99.97% at 0.3 µm, and a bipolar ionising device. Coway calls the HEPA stage True HEPA; the newer Mighty2 is marketed as "IEST certified HEPA" instead. |
| Pre-Filter (Washable?) | Yes — washable fine-mesh pre-filter, no recurring cost | Yes — permanent washable mesh pre-filter. Coway's instructions: pull it out, rinse or vacuum, dry fully, reset. No recurring cost. |
| Filter Cost per Year | $55.99–$79.99/yr — Filter Q, part 1712-0123-00, list $79.99 and currently $55.99 direct from Winix, replaced every 12 months. The HEPA and AOC carbon are combined in one part, so that is the whole consumable bill. | $54.99/yr — Airmega Mighty AP-1512HH & 200M filter set (SKU 3304899 / 3109905 / 3118096) contains one HEPA filter (1-year life) and two deodorisation filters (6-month life), i.e. exactly one year of consumables. Specialty sets run $54.99–$56.99 (Intense Smoke, Allergen, Pet). |
| Ioniser / UV / PCO & CARB Classification | Yes — PlasmaWave is a plasma/ion stage. Winix states it "breaks down pollutants at the molecular level without producing harmful ozone" and, to its credit, publishes the measurement: "The 8-hr TWA Ozone for this product is 0.22 ppbv when tested in a 30 m3 chamber." CARB certifies the 5510 as an ELECTRONIC device (EO G-24-234, 2024-10-03) — ozone-capable, tested at or below 0.050 ppm. PlasmaWave has a dedicated on/off control and the unit filters perfectly well with it off. | Yes — the fourth stage is a bipolar ionising device, and it is listed in Coway's own filter composition. CARB records the AP-1512HH as an ELECTRONIC device (Coway/Woongjin Coway, EO G-13-027 and G-16-011), meaning it is capable of generating ozone and was certified only because it tested at or below 0.050 ppm. The revised AP-1512HHC (EO G-25-347) and the Mighty2 AP-1512N (G-26-042) are certified as Mechanical. The ioniser has its own button and can be switched off. |
| Noise, Lowest to Highest Setting (dB) | 23.5 dB on the slowest of five speeds (Winix published). Winix does not publish a top-speed figure. | 24 dB(A) lowest to 53 dB(A) highest (Coway published) |
| Air Quality Sensor | "Dual Smart Sensors" — a particle/air-quality sensor driving a 3-colour LED and auto mode, plus a light sensor that triggers sleep mode when the room darkens. Winix does not state whether the particle sensor is laser-based. | Coway calls it a "dust sensor" on this model and does not describe it as a laser particle counter. The successor Mighty2 upgrades to a "MegaScan laser sensor (PM1, 2.5, 10)" — which tells you what the AP-1512HH's sensor is not. |
| Smart Features & Offline Operation | Wi-Fi, the Winix Smart app and Alexa need an account. All five fan speeds, auto mode, sleep mode and the timer work from the top panel with no internet at all — the app is additive, not load-bearing. | None on this SKU. No account, no app, no cloud, no firmware; every function is on the top panel. That makes it the most future-proof mid-range unit here. |
| Power Draw & Annual Energy | AHAM-measured 65.0W at the smoke-CADR speed; 323 kWh annual energy consumption per the AHAM listing | 77W maximum (Coway published) |
| Warranty Terms & Conditions | 2-year warranty; certifications listed as AHAM / UL / CARB / Prop 65. Manufactured in Korea. | 3-year limited warranty per Coway's retail listing; Coway's own product page does not state a term |
| Warranty | 24 months | 36 months |
| Colors | Charcoal Gray | White, Black |
Category Scores
Coverage-Claim Honesty
The Winix 5510 (successor to the 5500-2) leads clearly here, 8.5 against 7.0 — a 1.5-point margin on the trap dimension for this category. Almost every brand derives its headline square footage from ONE air change per hour, which does close to nothing for smoke, pollen or wildfire particulate — the useful standard is 4.8 air changes an hour, and it is typically a fifth of the number on the box. A high score means the manufacturer publishes the 4.8-ACH figure prominently and it survives comparison with the AHAM Verifide room size; a low score means a big number with no stated air-change basis, or no CADR at all to derive one from.. If that is what you are buying for, the Coway Airmega AP-1512HH Mighty does not close the gap elsewhere.
Verified Clean-Air Delivery
The Winix 5510 (successor to the 5500-2) leads clearly here, 9.0 against 6.5 — a 2.5-point margin on how much air the unit actually cleans per minute, weighted heavily toward AHAM Verifide smoke CADR over manufacturer-published figures. Self-reported CADR scores below Verifide CADR, and 'no CADR published at all' scores below both. If that is what you are buying for, the Coway Airmega AP-1512HH Mighty does not close the gap elsewhere.
Filtration Quality
The Winix 5510 (successor to the 5500-2) leads clearly here, 8.5 against 8.0 — a 0.5-point margin on what the media is really rated at — sealed H13, True HEPA, HEPA-Type, EPA 12 or charged fabric — whether the whole machine is sealed so air cannot bypass the filter, and how much genuine activated carbon there is for odours and VOCs. If that is what you are buying for, the Coway Airmega AP-1512HH Mighty does not close the gap elsewhere.
Running Cost
The Coway Airmega AP-1512HH Mighty leads clearly here, 8.0 against 7.0 — a 1.0-point margin on filters, pre-filters, cartridges and subscriptions over three years, against the purchase price. Several units here cost more to feed than to buy; a high score means cheap, long-lived, non-proprietary consumables. If that is what you are buying for, the Winix 5510 (successor to the 5500-2) does not close the gap elsewhere.
Quietness
The Winix 5510 (successor to the 5500-2) leads clearly here, 8.0 against 7.5 — a 0.5-point margin on measured decibels at the lowest setting you would run overnight AND at the top speed you need in a smoke event — a purifier is only useful at a speed you can tolerate. Not publishing a figure at either end costs points. If that is what you are buying for, the Coway Airmega AP-1512HH Mighty does not close the gap elsewhere.
Sensor Quality
The Winix 5510 (successor to the 5500-2) leads clearly here, 7.0 against 5.0 — a 2.0-point margin on whether there is a real laser particle sensor resolving PM1/PM2.5/PM10 with numeric output, a vaguer 'air quality' index, an inference from a cheap VOC element, or no sensor and therefore no auto mode at all. If that is what you are buying for, the Coway Airmega AP-1512HH Mighty does not close the gap elsewhere.
Freedom From Ozone & Air Chemistry
The Winix 5510 (successor to the 5500-2) leads clearly here, 6.0 against 5.0 — a 1.0-point margin on whether the unit adds an ioniser, plasma, UV or photocatalytic stage to the airstream, whether that stage can be switched off, and how CARB classifies the device — 'Mechanical' means filtration only, 'Electronic' means capable of generating ozone and certified only as being at or below 0.050 ppm. If that is what you are buying for, the Coway Airmega AP-1512HH Mighty does not close the gap elsewhere.
Controls & Independence
The Winix 5510 (successor to the 5500-2) and Coway Airmega AP-1512HH Mighty are level here, at 8.0/10 each. whether every mode works from the machine itself with no account or cloud, how good the auto mode is, filter-change access, and whether losing a remote or a login costs you function is not what separates these two — look to the categories where the scores diverge.
Best For
Choose the Winix 5510 (successor to the 5500-2) if…
- • Verified Clean-Air Delivery matters most to you — the Winix 5510 (successor to the 5500-2) scores 9.0/10 here (how much air the unit actually cleans per minute, weighted heavily toward AHAM Verifide smoke CADR over manufacturer-published figures. Self-reported CADR scores below Verifide CADR, and 'no CADR published at all' scores below both).
- • Sensor Quality matters most to you — the Winix 5510 (successor to the 5500-2) scores 7.0/10 here (whether there is a real laser particle sensor resolving PM1/PM2.5/PM10 with numeric output, a vaguer 'air quality' index, an inference from a cheap VOC element, or no sensor and therefore no auto mode at all).
- • Coverage-Claim Honesty matters most to you — the Winix 5510 (successor to the 5500-2) scores 8.5/10 here (the trap dimension for this category. Almost every brand derives its headline square footage from ONE air change per hour, which does close to nothing for smoke, pollen or wildfire particulate — the useful standard is 4.8 air changes an hour, and it is typically a fifth of the number on the box. A high score means the manufacturer publishes the 4.8-ACH figure prominently and it survives comparison with the AHAM Verifide room size; a low score means a big number with no stated air-change basis, or no CADR at all to derive one from.).
- • Freedom From Ozone & Air Chemistry matters most to you — the Winix 5510 (successor to the 5500-2) scores 6.0/10 here (whether the unit adds an ioniser, plasma, UV or photocatalytic stage to the airstream, whether that stage can be switched off, and how CARB classifies the device — 'Mechanical' means filtration only, 'Electronic' means capable of generating ozone and certified only as being at or below 0.050 ppm).
- • Your main use case is aham-verifide.
Choose the Coway Airmega AP-1512HH Mighty if…
- • Running Cost matters most to you — the Coway Airmega AP-1512HH Mighty scores 8.0/10 here (filters, pre-filters, cartridges and subscriptions over three years, against the purchase price. Several units here cost more to feed than to buy; a high score means cheap, long-lived, non-proprietary consumables).
- • You want to spend less — it's $20 cheaper.
Pros & Cons
Winix 5510 (successor to the 5500-2)
Pros
- +AHAM Verifide 253 smoke CADR — verified performance, not a manufacturer number
- +Leads with the 392 ft² 4.8-ACH figure and relegates the 1,882 ft² claim to a footnote
- +Publishes an actual ozone measurement (0.22 ppbv 8-h TWA) rather than just asserting "ozone-free"
- +One $55.99–79.99 part a year covers HEPA and carbon together; the pre-filter is washable
- +Works completely offline — every mode is on the panel, the app only adds remote control
Cons
- −PlasmaWave means CARB certifies it as an Electronic (ozone-capable) device; switch it off unless you want it
- −Winix publishes only the 23.5 dB minimum and never the top-speed noise, which at 65W is not quiet
- −323 kWh/yr on the AHAM listing is the second-highest energy use in this file
- −The 99.99% HEPA claim rests on a Korean KCL test to a modified SPS-KACA method, not EN 1822 or IEST
- −$259.99 direct is well above the street price the outgoing 5500-2 trained buyers to expect
Coway Airmega AP-1512HH Mighty
Pros
- +Coway publishes a three-rung coverage ladder — 1,748 / 874 / 361 ft² — instead of hiding the 4.8-ACH figure
- +$54.99 buys a complete year of filters, the cheapest running cost of any 200-plus-CADR unit here
- +Washable permanent pre-filter genuinely removes a consumable rather than renaming one
- +Completely offline: no account, no app, no firmware, nothing to be discontinued
- +3-year warranty and a decade of continuous production behind the design
Cons
- −Coway is not in the AHAM Verifide directory at all in August 2026, so the 233/246/240 CADR is self-reported
- −The fourth stage is a bipolar ioniser and CARB classifies this model as an Electronic device — ozone-capable, certified only as under 0.050 ppm. Switch it off
- −The air-quality sensor is a dust sensor, not the laser PM sensor Coway put in the Mighty2 successor
- −77W is the second-highest draw here for a mid-size unit
- −No Wi-Fi, no scheduling, no filter-life telemetry — you watch an indicator light
Shop by Need
FAQs
Is the Winix 5510 (successor to the 5500-2) or Coway Airmega AP-1512HH Mighty better overall?+
Based on our 8-category scoring, the Winix 5510 (successor to the 5500-2) comes out ahead overall. See the full breakdown in the scores section above — the right pick still depends on which categories matter most for your use case.
Which is better for Verified Clean-Air Delivery, the Winix 5510 (successor to the 5500-2) or the Coway Airmega AP-1512HH Mighty?+
The Winix 5510 (successor to the 5500-2) scores higher on Verified Clean-Air Delivery (9.0/10 vs 6.5/10) — how much air the unit actually cleans per minute, weighted heavily toward AHAM Verifide smoke CADR over manufacturer-published figures. Self-reported CADR scores below Verifide CADR, and 'no CADR published at all' scores below both.
Which is better for Sensor Quality, the Winix 5510 (successor to the 5500-2) or the Coway Airmega AP-1512HH Mighty?+
The Winix 5510 (successor to the 5500-2) scores higher on Sensor Quality (7.0/10 vs 5.0/10) — whether there is a real laser particle sensor resolving PM1/PM2.5/PM10 with numeric output, a vaguer 'air quality' index, an inference from a cheap VOC element, or no sensor and therefore no auto mode at all.
Which is better for Coverage-Claim Honesty, the Winix 5510 (successor to the 5500-2) or the Coway Airmega AP-1512HH Mighty?+
The Winix 5510 (successor to the 5500-2) scores higher on Coverage-Claim Honesty (8.5/10 vs 7.0/10) — the trap dimension for this category. Almost every brand derives its headline square footage from ONE air change per hour, which does close to nothing for smoke, pollen or wildfire particulate — the useful standard is 4.8 air changes an hour, and it is typically a fifth of the number on the box. A high score means the manufacturer publishes the 4.8-ACH figure prominently and it survives comparison with the AHAM Verifide room size; a low score means a big number with no stated air-change basis, or no CADR at all to derive one from..
Which is better for Running Cost, the Winix 5510 (successor to the 5500-2) or the Coway Airmega AP-1512HH Mighty?+
The Coway Airmega AP-1512HH Mighty scores higher on Running Cost (8.0/10 vs 7.0/10) — filters, pre-filters, cartridges and subscriptions over three years, against the purchase price. Several units here cost more to feed than to buy; a high score means cheap, long-lived, non-proprietary consumables.
Is the Winix 5510 (successor to the 5500-2) worth the price difference over the Coway Airmega AP-1512HH Mighty?+
The Coway Airmega AP-1512HH Mighty is the cheaper option at $239.99 versus $259.99. Whether the pricier model is "worth it" depends on how much you value its lead in Verified Clean-Air Delivery.
Which is better suited to my use case?+
The Winix 5510 (successor to the 5500-2) is the better fit if you mainly care about aham-verifide. The Coway Airmega AP-1512HH Mighty is the better fit for large-room or wildfire-smoke.
What's the warranty on the Winix 5510 (successor to the 5500-2) vs the Coway Airmega AP-1512HH Mighty?+
The Winix 5510 (successor to the 5500-2) ships with a 24-month warranty; the Coway Airmega AP-1512HH Mighty ships with a 36-month warranty. Always confirm current terms on the manufacturer's site before buying.
Should I wait for the next model instead of buying either of these?+
If either model is more than two years old, a successor may be close — check the "Latest Model" link on each product page. Otherwise, both are current, well-supported options and there's no strong reason to wait.
Cheaper Option
Levoit Core 300S-P Smart Air Purifier — $149.99
Premium Option
Honeywell InSight HEPA Tower HPA180B — $263.48
Specifications and prices for both products last verified . Scores are calculated from published specifications — see how we compare products.