Coway
Coway AP-1512HH Mighty
$229Cheaper
Released 2016
Best Air Purifiers · head-to-head
Coway AP-1512HH Mighty vs Dyson Purifier Big+Quiet Formaldehyde BP04
A sourced, side-by-side comparison. Coway AP-1512HH Mighty is cheaper at $229. Every spec and price links to its source.
Dyson
Dyson Purifier Big+Quiet Formaldehyde BP04
$1199.99
Released 2023
Which is better: the Coway AP-1512HH Mighty or Dyson Purifier Big+Quiet Formaldehyde BP04?
On the specs we track, they're closely matched. The Coway AP-1512HH Mighty is the cheaper at $229.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Coway AP-1512HH Mighty | Dyson Purifier Big+Quiet Formaldehyde BP04 |
|---|---|---|
| US price | $229 | $1199.99 |
| Brand | Coway | Dyson |
| Released | 2016 | 2023 |
| Cadr smoke (CFM) | 233 | — |
| Coverage (sq ft) | 360 | — |
| Hepa | Yes | Yes |
| Filter type | Pre-filter + Activated Carbon + True HEPA + Ionizer (switchable) | 360° HEPA H13 + K-Carbon filter + SCO (Selective Catalytic Oxidization) formaldehyde filter |
| Noise db min | 24.4 | — |
| Smart | No | Yes |
| Energy star | Yes | No |
| Release | 2016 | 2023 |
Sources — Coway AP-1512HH Mighty: breathequality.com (verified 2026-06-15). Dyson Purifier Big+Quiet Formaldehyde BP04: dyson.com (verified 2026-06-15).
What's the difference between the Coway AP-1512HH Mighty and Dyson Purifier Big+Quiet Formaldehyde BP04?
Where the two actually differ on the specs we track (3 of 7). Matching specs are omitted.
- Filter type: Coway AP-1512HH Mighty Pre-filter + Activated Carbon + True HEPA + Ionizer (switchable) vs Dyson Purifier Big+Quiet Formaldehyde BP04 360° HEPA H13 + K-Carbon filter + SCO (Selective Catalytic Oxidization) formaldehyde filter
- Smart: Coway AP-1512HH Mighty false vs Dyson Purifier Big+Quiet Formaldehyde BP04 true
- Energy star: Coway AP-1512HH Mighty true vs Dyson Purifier Big+Quiet Formaldehyde BP04 false
What reviewers say
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
Coway AP-1512HH Mighty
HouseFresh's chamber test rates the Coway AP-1512HH Mighty a strong cleaner — clearing incense smoke in a 728 cu ft lab in 26 minutes at top speed with a 247.7 CFM dust CADR — but flags it as unusually power-hungry (75.3W) and now dated, with better-value rivals available. (1 sourced review, 1 lab-tested.)
Praised: Strong, fast air-cleaning performance (26 min to clear room at top speed) with decent value when the ionizer runs at full speed; Very cheap and widely available OEM/generic replacement filters.
Flagged: Much more power-hungry than similarly performing purifiers (75.3W at Speed 3), raising long-term running cost; Design is dated versus modern units; performance-per-dollar drops sharply without the ionizer and at lower speeds.
Dyson Purifier Big+Quiet Formaldehyde BP04
Three whitelisted outlets (TechRadar, Reviewed/USA Today, TechHive) hands-on or lab tested the Dyson Purifier Big+Quiet Formaldehyde; TechRadar and Reviewed covered the higher CO2-sensor trim (aligned with BP04) while TechHive tested the base Formaldehyde unit. All quotes and measured values below were verified as literal substrings of the fetched pages. All rate it a powerful, genuinely quiet large-room purifier with standout formaldehyde/VOC filtration and rare five-year HEPA H13 filter life, but flag its very high price and bulk. Reviewed's lab pegs particle CADR at only ~200 CFM (smoke) — good, not class-leading — and Dyson publishes no official CADR. (3 sourced reviews, 3 lab-tested.)
Praised: Best-in-class formaldehyde/VOC chemical filtration; Powerful; cleans very large open-plan spaces; Acoustically quiet despite its power.
Flagged: Very expensive; costs a small fortune; Big, heavy and bulky (26 lbs, ~33 in tall); Produces a strong, physically noticeable airflow/wind nearby.