The process of airing the room is accompanied by a complete change of the air in it (in addition to cleaning, drying, heating, cooling, ionization, etc.). The ventilation process of buildings is carried out using special modern equipment responsible for maintaining the required level of humidity, temperature and cleanliness. In order for the equipment to be properly serviced and the maintenance of ventilation systems not to become a major cost item, it is necessary to provide timely service to the systems.