Winix 5520
#5 in Large roomsFull review
A living-room purifier with strong airflow and low filter costs at Amazon’s price. Turn PlasmaWave off if you’re sensitive to ozone.
Amazon $179.99$179.99
The Winix 5520 rates 3.7 among large rooms air purifiers; the Coway Airmega Mighty AP-1512HH rates 3.6 among medium rooms ones. The Coway Airmega Mighty AP-1512HH costs $25.01 less ($154.98 vs $179.99).
Coway Airmega Mighty AP-1512HH
#3 in Medium roomsFull review
A long-running favourite for a bedroom or living room that’s still cheap on Amazon. It has an air quality sensor but no app.
Amazon $154.98$154.98
Prices were last checked October 22, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Scores side by side
These two sit in different room size classes (large rooms and medium rooms), and each is scored against the reference points for its own class, so a rating says how well each does among its own room size peers. How we rank explains each factor.
| Factor weight | Winix 5520 | Coway Airmega Mighty AP-1512HH |
|---|---|---|
| Overall rating | 3.7/5 | 3.6/5 |
| Value 25% | 77 $0.71 per cfm of smoke CADR | 87 $0.67 per cfm of smoke CADR |
| Filter cost 20% | 87 $47.49 a year in filters | 78 $59.79 a year in filters |
| Quiet 20% | 50 noise at top speed not published (neutral score used) | 47 53 dB at top speed (maker rating) |
| Efficiency 15% | 32 4.6 cfm per watt | 50 efficiency not certified (neutral score used) |
| Auto mode 10% | 100 particle (dual sensors) sensor and Wi-Fi app | 70 particle sensor, auto mode |
| Warranty 10% | 25 2-year warranty | 0 1-year warranty |
Specifications
| Winix 5520 | Coway Airmega Mighty AP-1512HH | |
|---|---|---|
| Performance | ||
| Smoke CADR | 253 cfm | 233 cfm |
| Dust CADR | 252 cfm | 246 cfm |
| Pollen CADR | 247 cfm | 240 cfm |
| PM2.5 CADR | 252 cfm | - |
| CADR certified by | AHAM Verifide | Maker (AHAM AC-1 test) |
| Room size (AHAM) | 392 sq ft | - |
| Coverage (maker) | 1,882 sq ft | 361 sq ft |
| Noise | 23.5 dB | 24 to 53 dB |
| Efficiency | ||
| Efficiency (IEF) | 4.6 cfm/W | - |
| ENERGY STAR | No | No |
| Energy use | 323 kWh/year | - |
| Power at top speed | 65 W | 77 W |
| Filters | ||
| Filter | HEPA | HEPA |
| Activated carbon | Yes | Yes |
| Replacement | Filter Q (1712-0123-00) | AP-1512HH-FP filter set |
| Replacement cost | $47.49 every 12 months | $59.79 every 12 months |
| Yearly filter cost | $47.49/year | $59.79/year |
| Ionizer | Yes, can be switched off | Yes, can be switched off |
| CARB certified (ozone) | Yes | Yes |
| Controls and build | ||
| Air-quality sensor | particle (dual sensors) | particle |
| Auto mode | Yes | Yes |
| Wi-Fi app | Yes | No |
| Fan speeds | 5 | 3 |
| Dimensions | 22.17 x 13.59 x 8.27 in | 18.3 x 16.8 x 9.6 in |
| Weight | 13.3 lb | 12.3 lb |
| Warranty | 2 years | 1 years |