CFW Fans supplies a range of general ventilation fans. Where natural ventilation is not enough, mechanical ventilation is used to dilute the concentration of airborne contaminants within a building and introduce fresh air. Fans for general ventilation are common in commercial buildings, warehouses and agriculture as well as working areas in many industries.

General ventilation is not suitable for toxic fumes or fire smoke exhaustion because the ventilation system will spread the contaminants through the space before exhausting them. More specialised air conditioning solutions are also needed for temperature-controlled spaces, as general ventilation can increase the cost of cooling or heating dramatically.