Regular cleaning and disinfection of air conditioning systems – ideally twice a year, before and after the main season – are essential for health, efficiency, and the longevity of the unit. Over time, dust, pollen, bacteria, and mold spores accumulate in the filters, ducts, and evaporators. Without thorough cleaning, these contaminants can be released into the indoor air, causing allergies or respiratory issues. In addition, dirty components reduce cooling performance and increase energy consumption. Semi-annual maintenance therefore ensures not only clean, healthy air but also reliable and energy-efficient operation of the air conditioning system.