Disclosed is a fluid trap for use with, or comprising part of, a respiratory therapy system, and in particular comprising part of, or configured to be connected to, a breathing limb, such as an expiratory limb, of a respiratory therapy system. The fluid trap comprises a container configured to contain fluid received from an inlet； a closure, the closure and container being configured to be removeably mounted together to close the container； and a valve configured to be removeably mounted on at least one of the container and the closure, and configured to be in a closed condition which prevents fluid from flowing through the inlet when the closure is not mounted on the container, the valve being further configured to be in an open position which allows fluid from the inlet into the container when the closure is mounted on the container.揭露了一種流體捕集器，該流體捕集器用於與呼吸治療系統一起使用或者包括呼吸治療系統的一部分，並且具體地包括呼吸治療系統的呼吸支路（諸如呼氣支路）的一部分或者被配置成連接到該呼吸支路上。該流體捕集器包括：容器，其被配置成容納從入口接收的流體；封閉件，該封閉件和容器被配置成可移除地安裝在一起以便封閉該容器；以及閥，其被配置成可移除地安裝在該容器和該封閉件中的至少一者上，並且被配置成當該封閉件未安裝在該容器上時處於阻止流體流過該入口的關閉狀態，該閥被進一步配置成當該封閉件安裝在該容器上時處於允許流體從該入口進入該容器中的打開位置。
