Climma air extractors, specifically studied for marine applications, allow to remove air from internal ambients on-board, to ensure an adequate number of air changes. Usually they are used together with Climma AHU – Air Handling Units, but they can also be installed independently, guaranteeing a fixed amount of air. Climma air extractors are all studied with centrifugal high efficiency blowers, mounted on a strong frame with panels, to guarantee the maximum reliability, minimizing the noise.