Replacement filters for Breather Boxes™
- BB30-FK; Full set of filters for the 30CFM (2-worker) Breather Box™
- BB50-FK; Full set of filters for the 50CFM (4-worker) Breather Box™
- BB100-FK; Full set of filters for the 100CFM (4/8 worker) Breather Box™
- Filters must be changed on a regular basis in order to maintain Grade-D air quality