| 摘要 |
This invention relates to a fire damping ventilation device (1), which can be made with the appearance of existing ventilation devices which aren't fire damping, substantially maintaining the quality of ventilating and avoiding heat bridges, comprising a ventilation duct (2) for air passage and comprising intumescent material (5, 6) which is installed in the ventilation duct (2) such that it is able to close off the ventilation duct (2) after expansion, wherein the ventilation device (1) comprises ceramic structural elements (4) which are installed in the ventilation duct (2) such that under the effect of heat the structure of the ventilation device (1) is at least partially maintained.
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