Display shows 'CF' or 'clean filter' and the unit may reduce performance or beep repeatedly.

Safety first: Unplug the air fryer and let it cool before removing filters.

• Remove filters: Locate the air intake and exhaust filters (if equipped) at the rear or sides of the unit. Remove according to the user manual.
• Clean or replace: Wash reusable metal filters in warm soapy water, rinse thoroughly, and dry completely. Replace disposable charcoal or fiber filters with genuine Breville replacements.
• Clean vents: Use a soft brush or vacuum with a brush attachment to remove dust and grease from the vent grilles.
• Reset indicator: Follow the manual's procedure (often holding a specific button for several seconds) to reset the filter reminder.
• Internal cleaning: If airflow is still weak, inspect the convection fan housing for heavy grease buildup and clean carefully with a damp cloth (unit unplugged and fully cool).

Regular filter maintenance improves cooking performance and extends fan and heater life.