Clean air is a requirement for life, and the quality of indoor air is a health determinant since people spend most of their daily time indoors.

In recent years, the development and refinement of artificial intelligence (AI) technologies have revolutionised various fields, including computer vision.

Following the Industry 4.0 vision of a full digitization of the industry, time-critical services and applications, allowing network infrastructures to deliver information with determinism and reliability, are becoming more and more relevant for a set of vertical sectors.