| 摘要 |
This is a ventilation element of the sort including an opening (21) equipped with a grid (22) and, under its sole (16), a chute (24). According to the invention, the cross members (28, 28') of the grid (grille) (22) all extend projecting towards the bottom (25) of the chute (24) starting from the opening (21) and they are all inclined from upstream to downstream with respect to the sole (16) on approaching its downstream end as they recede from the opening (21). Application to the aeration of any building whatsoever. <IMAGE>
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