Coway Airmega AP-1512HH Mighty True vs Honeywell HPA300 True HEPA Allergen
Both made our Best Air Purifiers for Allergies shortlist, at #1 and #2. Here's how they differ and who each one suits.
- BuyOnceRight Research Desk
- Updated
- 4 min read
Quick verdict
Choose the Coway Airmega AP-1512HH Mighty True HEPA Air Purifier if you want 246 smoke CADR correctly covers rooms up to about 360 sq ft, and Coway's own coverage claim actually matches the honest two-thirds-rule math. Choose the Honeywell HPA300 True HEPA Allergen Remover if you'd rather have a 300 pollen CADR beats nearly every competitor in its price range, which matters most during spring and fall spikes. Overall we rank the Coway Airmega AP-1512HH Mighty True HEPA Air Purifier higher: #1 versus #2 in our Best Air Purifiers for Allergies list.
Winner overall: Coway Airmega AP-1512HH Mighty True HEPA Air Purifier
Coway Airmega AP-1512HH Mighty True HEPA Air Purifier vs Honeywell HPA300 True HEPA Allergen Remover compared
Every difference that matters, in one table.
| Attribute | ||
|---|---|---|
| Our ranking | #1 of 10 in Best Air Purifiers for Allergies | #2 of 10 in Best Air Purifiers for Allergies |
| Pick label | Best overall | |
| Brand | Coway | Honeywell |
| Key features | 246 smoke CADR covers rooms up to ~360 sq ft; True HEPA rated 99.97% at 0.3 microns; Washable fabric pre-filter for pet hair | 300 pollen CADR, highest in this price tier; True HEPA filtration, 99.97% at 0.3 microns; Turbo Clean setting for rapid particle knockdown |
| Biggest strength | 246 smoke CADR correctly covers rooms up to about 360 sq ft, and Coway's own coverage claim actually matches the honest two-thirds-rule math | A 300 pollen CADR beats nearly every competitor in its price range, which matters most during spring and fall spikes |
| Main trade-off | 230 dollars at list, roughly double a Levoit Core 300 for coverage under twice the area | Louder than the Coway or Levoit at equivalent output, noticeably so at speed three |
| Best for | Most buyers | allergies |
Which should you buy?
#1 pick · Best overall
Choose the Coway Airmega AP-1512HH Mighty True HEPA Air Purifier if…
- 246 smoke CADR correctly covers rooms up to about 360 sq ft, and Coway's own coverage claim actually matches the honest two-thirds-rule math
- Washable pre-filter meaningfully extends HEPA filter life, especially in pet households
- Eco mode shuts the fan off entirely after 30 minutes of clean readings and restarts automatically
Prefer the alternative? See the Honeywell HPA300 True HEPA Allergen Remover section.
#2 pick
Choose the Honeywell HPA300 True HEPA Allergen Remover if…
- A 300 pollen CADR beats nearly every competitor in its price range, which matters most during spring and fall spikes
- True HEPA rating is documented on the spec sheet rather than described vaguely as HEPA-type
- Exposed filter design without a plastic cage means more usable filtration surface per dollar
Best for: allergies
Prefer the alternative? See the Coway Airmega AP-1512HH Mighty True HEPA Air Purifier section.
Pros and cons of each
Coway Airmega AP-1512HH Mighty True HEPA Air Purifier
Pros
- 246 smoke CADR correctly covers rooms up to about 360 sq ft, and Coway's own coverage claim actually matches the honest two-thirds-rule math
- Washable pre-filter meaningfully extends HEPA filter life, especially in pet households
- Eco mode shuts the fan off entirely after 30 minutes of clean readings and restarts automatically
- 43 dB maximum, ~24 dB on speed one, quiet enough to run in a bedroom overnight
- 42,000 ratings at 4.7 stars is the deepest reliability record in the category
Cons
- 230 dollars at list, roughly double a Levoit Core 300 for coverage under twice the area
- Basic optical sensor responds well to visible smoke, less reliably to fine particulate
- Includes an ionizer that should be switched off, and the setting doesn't always persist through a power cycle
- Filter change indicator runs on a fixed timer rather than actual filter loading
Honeywell HPA300 True HEPA Allergen Remover
Pros
- A 300 pollen CADR beats nearly every competitor in its price range, which matters most during spring and fall spikes
- True HEPA rating is documented on the spec sheet rather than described vaguely as HEPA-type
- Exposed filter design without a plastic cage means more usable filtration surface per dollar
- Filters are widely stocked third-party and genuine, so five-year cost stays predictable
- 34,000 ratings back up consistent long-term performance
Cons
- Louder than the Coway or Levoit at equivalent output, noticeably so at speed three
- Boxier plastic housing looks and feels less premium than the Coway's build
- No washable pre-filter, so all hair and large debris load directly onto the HEPA media
- Auto mode's sensor reacts more to visible particles than to fine pollen dust
Coway Airmega AP-1512HH Mighty True HEPA Air Purifier vs Honeywell HPA300 True HEPA Allergen Remover: common questions
Which is better, the Coway Airmega AP-1512HH Mighty True HEPA Air Purifier or the Honeywell HPA300 True HEPA Allergen Remover?
Choose the Coway Airmega AP-1512HH Mighty True HEPA Air Purifier if you want 246 smoke CADR correctly covers rooms up to about 360 sq ft, and Coway's own coverage claim actually matches the honest two-thirds-rule math. Choose the Honeywell HPA300 True HEPA Allergen Remover if you'd rather have a 300 pollen CADR beats nearly every competitor in its price range, which matters most during spring and fall spikes. Overall we rank the Coway Airmega AP-1512HH Mighty True HEPA Air Purifier higher: #1 versus #2 in our Best Air Purifiers for Allergies list.
What is the difference between the Coway Airmega AP-1512HH Mighty True HEPA Air Purifier and the Honeywell HPA300 True HEPA Allergen Remover?
The Coway Airmega AP-1512HH Mighty True HEPA Air Purifier stands out because 246 smoke CADR correctly covers rooms up to about 360 sq ft, and Coway's own coverage claim actually matches the honest two-thirds-rule math, while the Honeywell HPA300 True HEPA Allergen Remover stands out because a 300 pollen CADR beats nearly every competitor in its price range, which matters most during spring and fall spikes. The trade-offs differ too: the Coway Airmega AP-1512HH Mighty True HEPA Air Purifier's main caveat is that 230 dollars at list, roughly double a Levoit Core 300 for coverage under twice the area, and the Honeywell HPA300 True HEPA Allergen Remover's is that louder than the Coway or Levoit at equivalent output, noticeably so at speed three.
Is the Coway Airmega AP-1512HH Mighty True HEPA Air Purifier worth it over the Honeywell HPA300 True HEPA Allergen Remover?
For most buyers, yes: it's our #1 pick. Consider the Honeywell HPA300 True HEPA Allergen Remover instead if 230 dollars at list, roughly double a Levoit Core 300 for coverage under twice the area is a deal-breaker for you.
Who should buy the Honeywell HPA300 True HEPA Allergen Remover instead of the Coway Airmega AP-1512HH Mighty True HEPA Air Purifier?
The Honeywell HPA300 True HEPA Allergen Remover suits allergies.