The solar ventilation kit Fresh Breeze can be used in many different ways: In the agricultural sector e.g. for the ventilation of chicken houses, for rooms with little air circulation such as green houses or winter gardens, garden huts or other rooms that are not used so often. Fresh breeze helps to keep the air fresh and to avoid musty odours and the condensation of water. The ventilator starts automatically as soon as the irradiation of the sun is high enough (also works with diffuse irradiation). No power supply or cabling is necessary. The ventilation system can be easily integrated in any (non-shaded) outer wall. The system can be easily changed for either in or out airflow.