| 摘要 |
<p>At least one horizontal conduit at level with the ground floor or the cellar connects two or more facades of a building and is coupled to the base of a vertical conduit. An anti-return unit at the inlet of the horizontal conduit prevents air from escaping to the external. At least one vertical conduit is arranged in a room to ventilate where one or more air apparatuses are suspended to ensure that air with positive pressure is distributed in the vertical conduit. The vertical conduit is a chimney having a deflector that operates with a smaller air pressure than the vertical conduit.</p> |
