Providing an appropriate microclimate in the livestock building is a key factor determining the success of breeding, and ventilation is its main element. Chimney fans or wall fans, air inlets, blinds and controllers are devices that must work on-site continuously throughout the production cycle, from the first day until the end of fattening. Our devices guarantee excellent conditions for the growth and development of birds, regardless of the weather conditions prevailing outside the facility. All microclimatic parameters prevailing in the hall are under the full control of the breeder, such as: temperature, air humidity, its flow rate as well as number of harmful compounds, carbon dioxide, ammonia, hydrogen sulphide and amount of oxygen contained in the air. All these parameters are of particular importance for young, fast-growing birds.