AirDoctor air purifiers compared
ENERGY STAR currently lists 2 AirDoctor models (after merging duplicate listings), from 170 to 370 cfm smoke CADR.
| Model | Smoke CADR (cfm) | ENERGY STAR room size (sq ft) | Energy use (kWh/yr) | Est. electricity/yr* | Most Efficient |
|---|---|---|---|---|---|
| AirDoctor AD1500 | 170 | 264 | 166 | $30.39 | No |
| AirDoctor AD4000 | 370 | 574 | 396.2 | $72.54 | No |
*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.
AirDoctor on the manufacturer's site (plain link, not an affiliate link)