Levoit Core 400S vs Coway AP-1526D (Airmega Halo)
A spec-only comparison using ENERGY STAR certification data. We have not tested either unit, and features like noise, filter price and build quality are not covered here.
- Cleaning speed: the Coway AP-1526D (Airmega Halo) has the higher smoke CADR (255 vs 231 cfm, 10% more).
- Running cost: the Coway AP-1526D (Airmega Halo) uses less electricity per ENERGY STAR (197 kWh/yr), about $7.32/yr less at the U.S. average rate (estimate).
- Room size: by AHAM's 2/3 rule, up to about 346 sq ft vs 382 sq ft.
Both sit in ENERGY STAR data as Medium rooms (150–249 cfm) / Large rooms (250–349 cfm) units by smoke CADR. Listed differences: only the Levoit Core 400S is listed as connected (app/Wi-Fi); only the Levoit Core 400S lists an air-quality-sensor auto mode. Over 5 years at the U.S. average rate, the electricity difference is about $36.62 (estimate).
| Levoit Core 400S | Coway AP-1526D (Airmega Halo) | |
|---|---|---|
| Smoke CADR (cfm) | 231 | 255 |
| Dust CADR (cfm) | 240 | 259 |
| Pollen CADR (cfm) | 259 | 293 |
| ENERGY STAR room size | 358 sq ft | 395 sq ft |
| AHAM 2/3-rule room size | 346 sq ft | 382 sq ft |
| Annual energy | 237 kWh | 197 kWh |
| Est. electricity/yr (U.S. avg) | $43.39 | $36.07 |
| Smoke CADR per watt | 5.75 | 7.52 |
| Ozone (reported) | 0 ppb | 0 ppb |
| Technology | Fan and Filter | Fan and Filter |
| Filters listed | HEPA-Type | HEPA-Type |
| Auto mode | Air Quality Sensor,Timer | None |
| Connected | Yes | No |
| Most Efficient | No | No |
| Source | ENERGY STAR record 4027325 | ENERGY STAR record 4668554 |
Purchase price and filter cost are not included (data gap). Electricity estimates use 18.31¢/kWh (EIA).
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See Levoit air purifiers on the manufacturer's site (plain link, not an affiliate link)
See Coway air purifiers on the manufacturer's site (plain link, not an affiliate link)