Ventilation and air conditioning systems are essential in most regions of our world. Together with heating systems, they are also responsible for more than half of the energy consumption in buildings. WeavAir from Canada shows that there is massive savings potential for energy consumption and emissions. Using intelligent measuring devices, 20 factors are recorded in real time. Therefore, optimal air quality is ensured and energy consumption optimized. WeavAir also supports health and well-being by identifying infections such as Corona and activating the best filtration systems. At the same time, up to 30% of the operating and maintenance costs can be saved. Due to the great success of this intelligent technology, WeavAir is already active on 3 continents.