IQAir ATEM E vs Coway Airmega 350
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 IQAir ATEM E has the higher smoke CADR (369 vs 360 cfm, 2% more).
- Running cost: the IQAir ATEM E uses less electricity per ENERGY STAR (295 kWh/yr), about $8.97/yr less at the U.S. average rate (estimate).
- Room size: by AHAM's 2/3 rule, up to about 554 sq ft vs 540 sq ft.
Both sit in ENERGY STAR data as Extra-large rooms (350+ cfm) units by smoke CADR. Listed differences: only the IQAir ATEM E is listed as connected (app/Wi-Fi). Over 5 years at the U.S. average rate, the electricity difference is about $44.86 (estimate).
| IQAir ATEM E | Coway Airmega 350 | |
|---|---|---|
| Smoke CADR (cfm) | 369 | 360 |
| Dust CADR (cfm) | 382 | 378 |
| Pollen CADR (cfm) | 423 | 450 |
| ENERGY STAR room size | 572 sq ft | 558 sq ft |
| AHAM 2/3-rule room size | 554 sq ft | 540 sq ft |
| Annual energy | 295 kWh | 344 kWh |
| Est. electricity/yr (U.S. avg) | $54.01 | $62.99 |
| Smoke CADR per watt | 7.38 | 6.12 |
| Ozone (reported) | 0 ppb | 0 ppb |
| Technology | Fan and Filter | Fan and Filter |
| Filters listed | HEPA-Type | HEPA-Type |
| Auto mode | Air Quality Sensor,Scheduled | Air Quality Sensor |
| Connected | Yes | No |
| Most Efficient | No | No |
| Source | ENERGY STAR record 4016351 | ENERGY STAR record 4005920 |
Purchase price and filter cost are not included (data gap). Electricity estimates use 18.31¢/kWh (EIA).
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See IQAir 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)