Abstract: An air-processing installation designed to ventilate and air-condition seal rooms, as well as an air-processing module designed for the making of an installation of this type are disclosed. With each room to be air-conditioned, there is associated a structurally and functionally independent air-processing module housed in an engine room common to the different air-processing modules and remote controlled, independently of the other air-processing modules, from the associated room. Preferably, the modules are suspended in a mutually juxtaposed state in the engine room. An installation of this type reconciles requirements of hygiene and comfort with easy maintenance while at the same time, occupying the minimum amount of space.