| 摘要 |
A filter suitable for use in the high temperature and pressure section of an aircraft Environmental Control System (ECS). The filter is able to remove, and optionally to destroy, harmful gases or vapours of nerve, mustard and lewisite agents from the air passing through the filter. Advantageously, the filter may be associated with the engine bleed air supplies without impeding the performance of the engine by decreasing the flow rate or supply of air from the bleeds to the ECS. The filter includes an adsorbent composition comprising a zeolite molecular sieve.
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