A system, method, and device for preserving blood and its components is described. The system and method generally include a device having a body defining a chamber, the chamber being configured to receive at least one bag containing blood or its components, the at least one bag being permeable to gas, for example, xenon. A cover is hermetically sealable to the body. An inlet is in fluid communication with the chamber. A pressure indicator is configured to indicate pressure in the chamber, the pressure indicator including a conduit containing a liquid. A portion of the conduit is transparent such that the liquid is visible. A source of pressurized gas, such as xenon, is provided to provide the pressurized gas to the chamber.本發明闡述用於保存血液及其成分之系統、方法及裝置。該系統及方法通常包括具有界定室之主體之裝置,該室經組態以接納含有血液或其成分之至少一個袋,該至少一個袋可滲透氣體(例如,氙)。蓋可氣密密封至該主體。入口與該室流體連通。壓力指示器經組態以指示該室中之壓力,該壓力指示器包括含有液體之導管。該導管之一部分係透明的,以使得該液體可見。提供加壓氣體(例如氙)源,以向該室提供該加壓氣體。