| 摘要 |
An all season, adjustable fresh air intake for agricultural buildings is claimed which is adapted to adjust the volume, velocity and direction of fresh air drawn from the outside, through the intake and into the building suitably by exhaust fans. The intake is firstly comprised of a hollow building body. The body extends from outside the building, through a ceiling or wall of the building with an opening extending into the building for bringing fresh air into the building from the outside. An air intake housing with at least one opening is attachable to the building body on the inside of the building at the body opening through which fresh air from outside may flow. A pair of independently adjustable deflectors are pivotally mounted onto the housing adjacent the opening in opposing relationship to each other to manually open and close the opening as well as direct the fresh air from ceiling to floor as the fresh air is drawn into the building through the fresh air intake.
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