Bosch air purifiers compared
ENERGY STAR currently lists 4 Bosch models (after merging duplicate listings), from 65 to 339 cfm smoke CADR.
| Model | Smoke CADR (cfm) | ENERGY STAR room size (sq ft) | Energy use (kWh/yr) | Est. electricity/yr* | Most Efficient |
|---|---|---|---|---|---|
| Bosch Air 1000 | 65 | 101 | 79 | $14.46 | No |
| Bosch Air 2000 | 86 | 133 | 104 | $19.04 | No |
| Bosch Air 4000 | 156 | 242 | 124 | $22.70 | No |
| Bosch Air 6000 | 339 | 525 | 289 | $52.92 | 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.
Bosch on the manufacturer's site (plain link, not an affiliate link)