The construction of state-of-the-art buildings with centralized ventilation systems where all the air exchange is done autonomously in the building and where there are no manual windows has made indoor air quality more relevant. There Publishing different parameters in theódigos that inhabit a work place that must be measured from the point of occupational and comfort, since these parameters (like temperature, humidity, speed, flow ,gunt, CO, CO2 and others) ) if they are in normal values ​​they contribute to having a correct working environment where there will be fewer illnesses contracted as colds (decreasing the absenteeism rate) and even where comfort conditions are optimal to maximize the performance of workers in their daily activities.