Air conditioners, unfortunately, are the ideal environments for the proliferation of bacteria, viruses and molds. AIRsana was born from the practical need of the founder who, after years of experience in the air conditioning industry, found a gap in the instrumentation useful for the maintenance and sanitization of the systems. In 2014 he conceived, designed and patented the “Specific device for sanitizing air conditioners”. AIRsana uses an innovative technology with saturated steam at 160/180 ℃ at 6–8 bar pressure, with simultaneous injection and suction flows, which eliminate any contaminant (dirt, dust, bacteria, molds, viruses, etc.) from any type of system, in a completely ecological way, ensuring safety for the operator. AIRsana brings systems back to the energy consumption specifications set by the manufacturer and minimizes interventions due to failures. It eliminates energy wastes, thus also mitigating its environmental impact. In addition, it is suitable for the integration of IOT technologies that allow the provision of predictive maintenance, reducing failures, within a circular economy logic. Currently, the company, consolidated in Lombardy, aims to spread throughout the country. In addition, the collaboration with the National Re-search Council is a harbinger of modeling methodologies and interpretation of data and signals also in relation with health effects of pollution; moreover, it is a potential source of complementary expertise on outdoor pollution. The company invests assiduously in its growth, in view of the sensitivity towards the green economy of 2030.