IQAir ATEM E: CADR, room size and running cost
Smoke CADR 369 cfm · Room size 572 sq ft (ENERGY STAR) · 295 kWh/yr ≈ $54.01/yr electricity (estimate)
Certified specs
| Smoke CADR | 369 cfm |
|---|---|
| Dust CADR | 382 cfm |
| Pollen CADR | 423 cfm |
| PM2.5 CADR | 376 cfm |
| ENERGY STAR effective room size | 572 sq ft (1.55 × smoke CADR, per 10 CFR 429.68) |
| Annual energy use | 295 kWh/yr |
| Integrated energy factor | 7.4 cfm/W |
| Smoke CADR per watt | 7.38 cfm/W |
| Ozone emissions (reported) | 0 ppb |
| Technology | Fan and Filter |
| Filter types listed | HEPA-Type |
| Automatic mode | Air Quality Sensor,Scheduled |
| Connected (app/Wi-Fi) | Yes (Wi-Fi) |
| ENERGY STAR Most Efficient | No |
| Markets | United States, Canada |
| Date certified | 2025-04-28 |
| ENERGY STAR partner | IQAir |
| Source | ENERGY STAR record 4016351 · Product Finder page |
How many air changes per hour would it give?
Estimate: air changes per hour (ACH) = smoke CADR × 60 ÷ room volume, at the top fan speed used for the CADR test. Real-world ACH is usually lower (lower fan speeds, furniture, filter loading).
| Room | ACH, 8 ft ceiling | ACH, 9 ft ceiling | AHAM sizing |
|---|---|---|---|
| 100 sq ft | 27.7 | 24.6 | Meets AHAM 2/3 rule |
| 150 sq ft | 18.4 | 16.4 | Meets AHAM 2/3 rule |
| 200 sq ft | 13.8 | 12.3 | Meets AHAM 2/3 rule |
| 300 sq ft | 9.2 | 8.2 | Meets AHAM 2/3 rule |
| 400 sq ft | 6.9 | 6.2 | Meets AHAM 2/3 rule |
| 500 sq ft | 5.5 | 4.9 | Meets AHAM 2/3 rule |
| 700 sq ft | 4.0 | 3.5 | Below AHAM 2/3 rule |
AHAM's 2/3 rule: choose a smoke CADR of at least 2/3 of the room's area (8 ft ceiling). By that rule this model suits rooms up to about 554 sq ft.
Estimated yearly electricity cost
| Where | Residential rate | Per year | Per month |
|---|---|---|---|
| Louisiana | 12.72¢ | $37.52 | $3.13 |
| U.S. average | 18.31¢ | $54.01 | $4.50 |
| California | 33.61¢ | $99.15 | $8.26 |
| Hawaii | 48.00¢ | $141.60 | $11.80 |
Estimate = 295 kWh/yr × rate. Rates: EIA Table 5.6.A, July 2026 (preliminary). Filter replacement cost is not included (data gap: not in ENERGY STAR data). Use your own rate and hours.
Similar CADR from other brands
| Model | Smoke CADR (cfm) | ENERGY STAR room size (sq ft) | Energy use (kWh/yr) | Est. electricity/yr* |
|---|---|---|---|---|
| Rainbow Luggable XL Ultra | 333 | 516 | 81 | $14.83 |
| Rainbow Brisk Box Ultra | 370 | 574 | 94 | $17.21 |
| Blueair 3631101000 | 356 | 552 | 210 | $38.45 |
| Blueair 3432111100 | 339 | 525 | 227 | $41.56 |
| Coway AP-3018B | 413 | 640 | 235 | $43.03 |
| Bosch Air 6000 | 339 | 525 | 289 | $52.92 |
| Alen BreatheSmart 75i_V2 | 370 | 574 | 304 | $55.66 |
| Cuckoo CAC-D2020FW | 382 | 592 | 316 | $57.86 |
*Estimate: ENERGY STAR annual kWh × U.S. average residential rate 18.31¢/kWh (EIA, July 2026 (preliminary)). ENERGY STAR's annual figure assumes 16 hours/day of operation under the DOE test procedure.
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We have not tested this product. Figures are as listed in ENERGY STAR data retrieved 2026-10-17.