The Friedrich C-90B is the newest version of our top-rated electronic air cleaner. While the basic construction of the unit is the same as the C-90A, improved internal components and design have yielded better performance.
| C-90B vs. C-90A | ||
| C-90B | C-90A | |
| Square Footage Served | 506 | 465 |
| CADR- Polled | 421 | 370 |
| CADR - Tobacco Smoke | 326 | 300 |
| CADR - Dust | 384 | 375 |
| CADR (Clean Air Delivery Rate) is determined by the Association of Home Appliance Manufacturers (AHAM). Click here for more information on CADR and AHAM | ||
