Air Purifiers / Coway Airmega AP-1512HH Mighty vs Shark NeverChange Air Purifier MAX (HP302)
Coway Airmega AP-1512HH Mighty vs Shark NeverChange Air Purifier MAX (HP302)
Coway Airmega AP-1512HH Mighty
Cheapest filters in the class and an honest coverage table — but check the ioniser button is off.
Wins overall by 0.6 points
Quick Verdict
A 0.6-point gap makes the Coway Airmega AP-1512HH Mighty the straightforward choice here. Cheapest filters in the class and an honest coverage table — but check the ioniser button is off.
The Coway Airmega AP-1512HH Mighty and Shark NeverChange Air Purifier MAX (HP302) are both closely matched air Purifier models, and the Coway Airmega AP-1512HH Mighty is $160 cheaper than the Shark NeverChange Air Purifier MAX (HP302) ($239.99 vs $399.99). On Coverage-Claim Honesty, the Coway Airmega AP-1512HH Mighty leads (7.0 vs 3.0/10) — 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.. On Freedom From Ozone & Air Chemistry, the Shark NeverChange Air Purifier MAX (HP302) leads (9.0 vs 5.0/10) — 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. On Quietness, the Coway Airmega AP-1512HH Mighty leads (7.5 vs 5.5/10) — 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. Overall, the Coway Airmega AP-1512HH Mighty scores 6.9/10 across our 8 scoring categories versus 6.3/10 for the Shark NeverChange Air Purifier MAX (HP302). Below, we break down the full spec sheet, category-by-category scores, and exactly who should buy which one.
Side-by-Side Comparison
| Spec | Coway Airmega AP-1512HH Mighty | Shark NeverChange Air Purifier MAX (HP302) |
|---|---|---|
| Price | $239.99 | $399.99 |
| Release Year | 2013 | 2023 |
| AHAM Verifide CADR (Smoke / Dust / Pollen) (CFM) | 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. | Not published, and not AHAM Verifide. Shark does not appear in the AHAM Verifide directory at all in August 2026, and publishes no CADR for smoke, dust or pollen. The only performance number on the page is "trapping 99.98% of large, small, and micro-sized particles", which is a capture-efficiency claim and says nothing about airflow. |
| AHAM Verifide Room Size (4.8 ACH) (ft²) | Not listed in the AHAM Verifide directory (August 2026). Coway's own 4.8-ACH figure is 361 ft². | Not listed in the AHAM Verifide directory (August 2026) |
| Coverage Claim & Its Air-Change Basis | 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. | "Up to 1,400 sq. ft." with no air-change basis stated anywhere on Shark's own page — no ACH figure, no room-volume assumption, no CADR to derive one from. Retail listings variously quote 1,300 and 1,200–1,500 sq ft for the same model. This is the least checkable coverage claim in the file. |
| Filter Grade (True HEPA / HEPA-Type / H13) | 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. | "True HEPA Multi-Filter" — a single tall cartridge combining pre-filtration and HEPA media, sold on longevity rather than grade. Shark quotes 99.98% capture but no H-class rating and no EN 1822 or IEST reference. |
| Pre-Filter (Washable?) | Yes — permanent washable mesh pre-filter. Coway's instructions: pull it out, rinse or vacuum, dry fully, reset. No recurring cost. | Integrated into the 5-year multi-filter — nothing separate to wash, and nothing separate to buy |
| Filter Cost per Year | $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). | About $80/yr in practice, all of it optional: the Odor Neutralizer Cartridge is $19.99 on a roughly 3-month cycle, and it is a fragrance cartridge you can leave out entirely. The main filter is claimed at up to 5 years, so amortised it is small. The caveat: independent analysis of Shark's own test conditions (cleanairadviser.com, 2026) reports the 5-year figure is measured in a 300 ft² room, 12 hours a day at maximum fan speed, to an endpoint that allows clean-air delivery to fall by 50% — so the filter is "still working" at half the airflow it started with. |
| Ioniser / UV / PCO & CARB Classification | 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. | None. No ioniser, no UV, no PCO. CARB-certified and classified MECHANICAL (Shark HP302, EO G-23-167, notified 2023-06-26). The Odor Neutralizer cartridge is a fragrance emitter, not an oxidiser — but it is still adding VOCs to the air you are cleaning. |
| Noise, Lowest to Highest Setting (dB) | 24 dB(A) lowest to 53 dB(A) highest (Coway published) | Not published by Shark at either end. No decibel figure appears on the product page. |
| Air Quality Sensor | 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. | "CleanSense IQ" air-quality monitoring driving an auto mode. Shark does not state the sensing technology or which pollutants it resolves. |
| Smart Features & Offline Operation | 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. | None. No Wi-Fi, no app, no account. Note that the infrared remote is listed as a $16.99 replacement part — losing it costs real money because there is no phone fallback. |
| Power Draw & Annual Energy | 77W maximum (Coway published) | 54W nominal, 86.2W peak (Shark published) |
| Warranty Terms & Conditions | 3-year limited warranty per Coway's retail listing; Coway's own product page does not state a term | 2-year limited warranty |
| Warranty | 36 months | 24 months |
| Colors | White, Black | White, Dove |
Category Scores
Coverage-Claim Honesty
The Coway Airmega AP-1512HH Mighty leads clearly here, 7.0 against 3.0 — a 4.0-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 Shark NeverChange Air Purifier MAX (HP302) does not close the gap elsewhere.
Verified Clean-Air Delivery
The Coway Airmega AP-1512HH Mighty leads clearly here, 6.5 against 5.0 — a 1.5-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 Shark NeverChange Air Purifier MAX (HP302) does not close the gap elsewhere.
Filtration Quality
The Coway Airmega AP-1512HH Mighty and Shark NeverChange Air Purifier MAX (HP302) are level here, at 8.0/10 each. 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 is not what separates these two — look to the categories where the scores diverge.
Running Cost
The Coway Airmega AP-1512HH Mighty leads clearly here, 8.0 against 6.5 — a 1.5-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 Shark NeverChange Air Purifier MAX (HP302) does not close the gap elsewhere.
Quietness
The Coway Airmega AP-1512HH Mighty leads clearly here, 7.5 against 5.5 — a 2.0-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 Shark NeverChange Air Purifier MAX (HP302) does not close the gap elsewhere.
Sensor Quality
The Shark NeverChange Air Purifier MAX (HP302) leads clearly here, 6.0 against 5.0 — a 1.0-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 Shark NeverChange Air Purifier MAX (HP302) leads clearly here, 9.0 against 5.0 — a 4.0-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 Coway Airmega AP-1512HH Mighty leads clearly here, 8.0 against 7.0 — a 1.0-point margin on 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. If that is what you are buying for, the Shark NeverChange Air Purifier MAX (HP302) does not close the gap elsewhere.
Best For
Choose the Coway Airmega AP-1512HH Mighty if…
- • Coverage-Claim Honesty matters most to you — the Coway Airmega AP-1512HH Mighty scores 7.0/10 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.).
- • Quietness matters most to you — the Coway Airmega AP-1512HH Mighty scores 7.5/10 here (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).
- • Verified Clean-Air Delivery matters most to you — the Coway Airmega AP-1512HH Mighty scores 6.5/10 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).
- • 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 $160 cheaper.
Choose the Shark NeverChange Air Purifier MAX (HP302) if…
- • Freedom From Ozone & Air Chemistry matters most to you — the Shark NeverChange Air Purifier MAX (HP302) scores 9.0/10 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 ioniser-free.
Pros & Cons
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
Shark NeverChange Air Purifier MAX (HP302)
Pros
- +A 5-year filter genuinely removes the annual $60–100 tax that defines this category
- +Purely mechanical and CARB Mechanical — no ioniser, no UV, nothing to remember to switch off
- +The odour cartridge is optional and removable, so you are not forced to perfume your air
- +CleanSense IQ auto mode with no account, no app and no cloud dependency
- +13.45 lb and 54W nominal for a 1,400 ft²-class tower
Cons
- −No CADR at all, and Shark is absent from the AHAM Verifide directory — the "1,400 sq. ft." has no published air-change basis
- −The 5-year filter claim is measured to an endpoint that permits a 50% fall in clean-air delivery, per independent analysis of Shark's own conditions
- −No decibel figures published at any speed
- −$399.99 list buys 435 verified CFM from Blueair or 253 from Winix; here it buys an unquantified airflow
- −The remote is the only controller and Shark sells it as a $16.99 replacement part — there is no app fallback
Shop by Need
FAQs
Is the Coway Airmega AP-1512HH Mighty or Shark NeverChange Air Purifier MAX (HP302) better overall?+
Based on our 8-category scoring, the Coway Airmega AP-1512HH Mighty 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 Coverage-Claim Honesty, the Coway Airmega AP-1512HH Mighty or the Shark NeverChange Air Purifier MAX (HP302)?+
The Coway Airmega AP-1512HH Mighty scores higher on Coverage-Claim Honesty (7.0/10 vs 3.0/10) — 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 Freedom From Ozone & Air Chemistry, the Coway Airmega AP-1512HH Mighty or the Shark NeverChange Air Purifier MAX (HP302)?+
The Shark NeverChange Air Purifier MAX (HP302) scores higher on Freedom From Ozone & Air Chemistry (9.0/10 vs 5.0/10) — 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.
Which is better for Quietness, the Coway Airmega AP-1512HH Mighty or the Shark NeverChange Air Purifier MAX (HP302)?+
The Coway Airmega AP-1512HH Mighty scores higher on Quietness (7.5/10 vs 5.5/10) — 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.
Which is better for Verified Clean-Air Delivery, the Coway Airmega AP-1512HH Mighty or the Shark NeverChange Air Purifier MAX (HP302)?+
The Coway Airmega AP-1512HH Mighty scores higher on Verified Clean-Air Delivery (6.5/10 vs 5.0/10) — 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.
Is the Coway Airmega AP-1512HH Mighty worth the price difference over the Shark NeverChange Air Purifier MAX (HP302)?+
The Coway Airmega AP-1512HH Mighty is the cheaper option at $239.99 versus $399.99. Whether the pricier model is "worth it" depends on how much you value its lead in Coverage-Claim Honesty.
Which is better suited to my use case?+
The Coway Airmega AP-1512HH Mighty is the better fit if you mainly care about wildfire-smoke. The Shark NeverChange Air Purifier MAX (HP302) is the better fit for ioniser-free.
What's the warranty on the Coway Airmega AP-1512HH Mighty vs the Shark NeverChange Air Purifier MAX (HP302)?+
The Coway Airmega AP-1512HH Mighty ships with a 36-month warranty; the Shark NeverChange Air Purifier MAX (HP302) ships with a 24-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
Blueair Blue Pure 211i Max (3613111100) — $349.99
Premium Option
Medify Air MA-40 (V4.0) — $249.99
Specifications and prices for both products last verified . Scores are calculated from published specifications — see how we compare products.