Comfortable Indoor Ventilation

Intermittent Extract Ventilation

Our range of intermittent extract fans provide efficient 'on-off' ventilation. These systems operate intermittently, based on your chosen control settings, to effectively remove humid, stale or polluted air from rooms and buildings.

Intermittent Extract Fans

Manufactured by Zehnder under the Greenwood brand, our range of intermittent extract fans offer traditional 'on-off' ventilation suitable for wet rooms in new builds and refurbishment applications. These fans operate intermittently, depending on the chosen control option, to effectively remove stale or humid air from wet rooms around the home.

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