Roof Extractor Centrifugal Type

What is a centrifugal roof extracter?
A centrifugal roof extractor is a type of fan that is mounted on the roof of a building to extract air, fumes, or dust. It is called a centrifugal extractor because it uses a rotating impeller to create centrifugal force, which throws the air outwards.
Centrifugal roof extractors are often used in industrial applications, such as factories and warehouses, to remove fumes and dust from the air. They can also be used in commercial buildings, such as restaurants and hotels, to remove smoke and cooking odors. Another type of centrifugal roof extractor is the direct-drive centrifugal extractor. This type of extractor has a motor that is directly connected to the impeller. Direct-drive centrifugal extractors are more efficient than belt-driven centrifugal extractors, but they are also more expensive and difficult to maintain.