User`s manual recommends us to clean brushes once a month. To clean side brushes, use a screwdriver to remove the screws. Clean it, rinse with water, or replace to a new one, and reinstall.
To clean roller-extractors, open the safe frame. Then remove extractors and remove extractor caps. Collect all hair and wipe the rollers outside and inside. Then put back the caps, reinstall the extractors, and close the frame.