| 摘要 |
<p>The present invention relates to a filtration device intended to be combined with an air injection or suction system, said device being mounted on a partition, of the ceiling or suspended ceiling type, separating an industrial roof space of a "clean" room, the air of which must be replaced, said device comprising a housing that communicates, on the one hand, with an upper end with the injection or suction system and, on the other hand, with a lower end with the room via an opening made in the partition, a peripheral sealing surface located in the housing, a filter mounted in the housing and comprising a frame of which the upper side, provided with an upper seal, rests against the sealing surface, clamping means exerting a force on the frame in order to compress the seal and keep the filter in place in the housing. According to the invention, the clamping means are moveably mounted in the lower part of the housing and rest against the lower side of the frame equipped with a lower seal, said clamping means, once they have been unclamped, also making it possible to access and remove the filter via the opening.</p> |
