Midea CAF-A40US(H): CADR, room size and running cost
Smoke CADR 129 cfm · Room size 200 sq ft (ENERGY STAR) · 127 kWh/yr ≈ $23.25/yr electricity (estimate)
Certified specs
| Smoke CADR | 129 cfm |
|---|---|
| Dust CADR | 132 cfm |
| Pollen CADR | 147 cfm |
| PM2.5 CADR | 130 cfm |
| ENERGY STAR effective room size | 200 sq ft (1.55 × smoke CADR, per 10 CFR 429.68) |
| Annual energy use | 127 kWh/yr |
| Integrated energy factor | 6 cfm/W |
| Smoke CADR per watt | 6 cfm/W |
| Ozone emissions (reported) | 1 ppb |
| Technology | Fan and Filter |
| Filter types listed | HEPA-Type |
| Automatic mode | Air Quality Sensor,Timer |
| Connected (app/Wi-Fi) | Yes (Wi-Fi) |
| ENERGY STAR Most Efficient | No |
| Markets | United States, Canada |
| Date certified | 2022-03-01 |
| ENERGY STAR partner | GD Midea Environment Appliances MFG Co., Ltd. |
| Source | ENERGY STAR record 4439577 · 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 | 9.7 | 8.6 | Meets AHAM 2/3 rule |
| 150 sq ft | 6.5 | 5.7 | Meets AHAM 2/3 rule |
| 200 sq ft | 4.8 | 4.3 | Below AHAM 2/3 rule |
| 300 sq ft | 3.2 | 2.9 | Below AHAM 2/3 rule |
| 400 sq ft | 2.4 | 2.1 | Below AHAM 2/3 rule |
| 500 sq ft | 1.9 | 1.7 | Below AHAM 2/3 rule |
| 700 sq ft | 1.4 | 1.2 | 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 194 sq ft.
Estimated yearly electricity cost
| Where | Residential rate | Per year | Per month |
|---|---|---|---|
| Louisiana | 12.72¢ | $16.15 | $1.35 |
| U.S. average | 18.31¢ | $23.25 | $1.94 |
| California | 33.61¢ | $42.68 | $3.56 |
| Hawaii | 48.00¢ | $60.96 | $5.08 |
Estimate = 127 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* |
|---|---|---|---|---|
| Blueair 3131000000 | 122 | 189 | 89 | $16.30 |
| Dreo DR-HAP005S | 116 | 180 | 98 | $17.94 |
| Dreame CVA11B | 116 | 180 | 106 | $19.41 |
| Frigidaire FHAP1020A1 | 115 | 178 | 108 | $19.77 |
| Frigidaire FHAP1040A1 | 115 | 178 | 109 | $19.96 |
| Dreo DR-HAP008 | 115 | 178 | 125 | $22.89 |
| Dreo DR-HAP008S | 115 | 178 | 125 | $22.89 |
| Coway AP-0823E (Airmega 100) | 118 | 183 | 128 | $23.44 |
*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.
Compare this model side by side with any other · All Midea models
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We have not tested this product. Figures are as listed in ENERGY STAR data retrieved 2026-10-17.