NEFF cooker hoods offer two modes of operation: Air Extraction and Air Recirculation. Choosing the right mode for your kitchen setup ensures effective ventilation, reduces odours, and maintains air quality.

Air Extraction Mode

The air which is drawn in is cleaned by the grease filters and conveyed to the exterior by a pipe system.

The air must not be discharged into a flue that is used for exhausting fumes from appliances burning gas or other fuels (not applicable to appliances that only discharge the air back into the room).

  • If the exhaust air is to be conveyed into a non-functioning smoke or exhaust gas flue, you must obtain the consent of the heating engineer responsible.
  • If the exhaust air is conveyed through the external wall, a telescopic duct should be used.

The Benefits of Extraction

  • No odour filter necessary. Activated carbon filters used in recirculation mode are not required, reducing maintenance.
  • Improved air quality. Moisture, smells, and particles are expelled entirely from the home.
  • Quieter operation. No carbon filter means lower airflow resistance and less noise during use.

Air Recirculation Mode

The air which is drawn in is cleaned by the grease filters and an odour filter, and conveyed back into the room.

Benefits of Recirculation

  • Simple installation. No need for external ductwork or converters, making it ideal for most kitchens.
  • Energy efficient. Keeps warm air inside, allowing windows to remain closed. Perfect for low energy or airtight homes.
  • Flexible planning. Easy to fit in almost any kitchen layout, with no need to modify walls or plan new ducts.

Note: An odour filter is required for this mode. Check your NEFF instruction manual for the correct filter model. You can purchase replacement filters and accessories from our online shop.