Medify Air MA-50-V3.0: CADR, room size and running cost
Smoke CADR 264 cfm · Room size 409 sq ft (ENERGY STAR) · 252 kWh/yr ≈ $46.14/yr electricity (estimate)
Certified specs
| Smoke CADR | 264 cfm |
|---|---|
| Dust CADR | 281 cfm |
| Pollen CADR | 356 cfm |
| PM2.5 CADR | 272 cfm |
| ENERGY STAR effective room size | 409 sq ft (1.55 × smoke CADR, per 10 CFR 429.68) |
| Annual energy use | 252 kWh/yr |
| Integrated energy factor | 6.3 cfm/W |
| Smoke CADR per watt | 6.1 cfm/W |
| Ozone emissions (reported) | 0 ppb |
| Technology | Fan and Filter |
| Filter types listed | HEPA-Type |
| Automatic mode | None |
| Connected (app/Wi-Fi) | No |
| ENERGY STAR Most Efficient | No |
| Markets | United States |
| Date certified | 2025-12-10 |
| ENERGY STAR partner | MEDIFY AIR |
| Source | ENERGY STAR record 4518199 · 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 | 19.8 | 17.6 | Meets AHAM 2/3 rule |
| 150 sq ft | 13.2 | 11.7 | Meets AHAM 2/3 rule |
| 200 sq ft | 9.9 | 8.8 | Meets AHAM 2/3 rule |
| 300 sq ft | 6.6 | 5.9 | Meets AHAM 2/3 rule |
| 400 sq ft | 5.0 | 4.4 | Below AHAM 2/3 rule |
| 500 sq ft | 4.0 | 3.5 | Below AHAM 2/3 rule |
| 700 sq ft | 2.8 | 2.5 | 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 396 sq ft.
Estimated yearly electricity cost
| Where | Residential rate | Per year | Per month |
|---|---|---|---|
| Louisiana | 12.72¢ | $32.05 | $2.67 |
| U.S. average | 18.31¢ | $46.14 | $3.85 |
| California | 33.61¢ | $84.70 | $7.06 |
| Hawaii | 48.00¢ | $120.96 | $10.08 |
Estimate = 252 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.
On battery during an outage (estimate): 252 kWh ÷ 5,840 active hours ≈ 43 W average, which runs slightly high because the annual figure includes standby. A 1,024 Wh portable power station at an assumed 85% inverter efficiency would run it about 20 h. Top fan speed can draw more. Try other stations in the runtime calculator on our power station site.
Similar CADR from other brands
| Model | Smoke CADR (cfm) | ENERGY STAR room size (sq ft) | Energy use (kWh/yr) | Est. electricity/yr* |
|---|---|---|---|---|
| Blueair 3431101000 | 244 | 378 | 182 | $33.32 |
| Blueair 3332111100 | 283 | 439 | 193 | $35.34 |
| Coway AP-1526D (Airmega Halo) | 255 | 395 | 197 | $36.07 |
| Honeywell HPA6000B | 257 | 398 | 207 | $37.90 |
| Frigidaire FHAP2040A1 | 240 | 372 | 213 | $39.00 |
| Coway AP-1523D | 255 | 395 | 219 | $40.10 |
| Sharp KCP70UW | 255 | 395 | 225 | $41.20 |
| Levoit LAP-C401S-WUSR | 234 | 363 | 235 | $43.03 |
*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 Medify Air models
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We have not tested this product. Figures are as listed in ENERGY STAR data retrieved 2026-10-17.