Wind boosted ventilators having openings and compartments

A ventilation apparatus for removing exhaust gases from inside enclosed spaces to the atmosphere, said ventilation apparatus comprising:

• a ventilation duct having a hollow top, a hollow bottom and an external wall, the external wall having a plurality of openings,
• a circular pressure plate placed on the top of said ventilation duct,
• a shroud surrounding said ventilation duct in a such way that a gap is defined between said ventilation duct and said shroud, and
• a plurality of guide vanes configured to act as physical barriers to wind, extending outwardly and transversally with respect to a central axis between the external wall of said ventilation duct and the shroud,
• wherein:
• said openings are extending along said external wall of the ventilation duct and are inclined at a predetermined angle with respect to a central axis of said ventilation duct, and
• said plurality of guide vanes are placed in a such way that they divide the area between the ventilation duct and the shroud into a plurality of compartments, which retain a pressure gradient throughout the ventilation apparatus, for boosting movement of the exhaust gases out of the enclosed spaces.