Medify MA-14 CADR: what does 75 cfm mean for your room?
The MA-14 record in our ENERGY STAR snapshot reports 75 cfm smoke CADR, 85 cfm dust CADR and 90 cfm pollen CADR. Its reported room area is 116 ft². These figures belong to model number MA-14, ENERGY STAR ID 4437397; they should not be assumed to describe every later retail revision.
Using smoke CADR and an 8 ft ceiling, our calculation gives 117.2 ft² at 4.8 equivalent air changes per hour. That is close to the source’s reported 116 ft², not a substitute for it. The same unit delivers less clean air per hour relative to the room’s volume as the room gets larger.
Calculate the requirement for your roomRoom coverage changes with the air-change target
Calculated scenarios using 75 cfm smoke CADR and an 8 ft ceiling. These are not manufacturer coverage claims or measured performance in a home.
| Floor area | Ceiling | Calculated smoke eACH |
|---|---|---|
| 100 ft² | 8 ft | 5.63 |
| 150 ft² | 8 ft | 3.75 |
| 200 ft² | 8 ft | 2.81 |
At 200 ft², this record’s smoke CADR delivers 2.81 eACH rather than 4.8. This is a sizing constraint, not a claim that the unit stops filtering above 116 ft². eACH describes equivalent particle-free air from filtration, not outdoor-air ventilation or a health guarantee.
How efficient is it among similar-airflow records?
We compare it with 16 other records whose smoke CADR falls within ±15% of 75 cfm. The MA-14 reports 5.17 smoke cfm per watt; the peer median is 5.34 cfm/W. Higher cfm/W means more certified smoke clean-air delivery per watt, not necessarily quieter operation or lower lifetime cost.
| Metric | MA-14 | Peer median |
|---|---|---|
| Smoke CADR efficiency | 5.17 cfm/W | 5.34 cfm/W |
| Reported annual energy | 86 kWh | 87.3 kWh |
Inspect the comparison cohort
- Aeocky Cybertraon · 74 cfm · ID 4513918
- Afloia Kilo · 79 cfm · ID 4515858
- Blueair 3131000100 · 80 cfm · ID 4510117
- Blueair 4612522000 · 82 cfm · ID 4610574
- Bosch Air 1000 · 65 cfm · ID 4009456
- Bosch Air 2000 · 86 cfm · ID 4471346
- Byzeng APH200-22J · 70 cfm · ID 4528797
- Clorox Type AP40 · 79 cfm · ID 4005671
- COWAY AIRMEGA, COWAY, Coway Airmega 50 · 67 cfm · ID 4009116
- Honeywell HPA120*** · 71 cfm · ID 4528713
- Honeywell HPA125** · 71 cfm · ID 4576657
- Levoit LAP-B851S-WNA · 85 cfm · ID 4481120
- MEDIFY AIR MA-15 · 71 cfm · ID 4517791
- MegaLight AP88-DTS-WT · 70 cfm · ID 4528798
- MoreLite MLRAP-2000W · 64 cfm · ID 4429394
- WOZOYO Pure Air PA2 · 75 cfm · ID 4577050
MA-14 electricity cost: reported energy versus 24/7
The reported 86 kWh/year corresponds to $13.76/year at a hypothetical $0.16/kWh. It is not a claim about continuous use.
A separate constant-power scenario uses 14.5 W, derived from the certified smoke CADR and CADR/W. At that power for 24 hours every day, consumption would be 127.0 kWh/year, or $20.32/year at the same rate. Actual speed settings, controls and use can change consumption; filters and purchase price are excluded.
Estimate electricity costs for your usageEvidence, formulas and limits
Snapshot captured 2026-10-20. PureAirIndex analyzes certification records; we have not independently tested this MA-14. Noise, lower-speed CADR, current retail price, replacement-filter costs and retail coverage claims remain unverified.
Area = smoke CADR × 60 ÷ (eACH × ceiling height). eACH = smoke CADR × 60 ÷ room volume. Peers exclude this exact ID and use inclusive, unrounded ±15% smoke-CADR bounds; records are not product-family deduplicated. Medians describe this snapshot, not the entire market.