eSENSE FAI is a cost-optimised sensor solution for climate monitoring in classrooms and offices, for example. According to many studies, adequate ventilation increases the productivity and ability to learn. It can also reduce the risk of temporary illness and downtime. By measuring CO₂, you get a good indicator of when “fresh” outside air must be supplied for acceptable indoor air quality. The ventilation will then be based on actual demand. It helps you decrease the energy consumption and still have a healthy indoor climate. A CO₂ concentration below 1,000 ppm should always be the target.