Losing blood leads to loss of iron.

血液流失会导致铁的流失。

This device allows users to kill themselves relatively painlessly by inducing hypoxia and hypocapnia (the state of inadequate oxygen supply at the tissue level and reduced carbon dioxide in the blood leading to death).

该设备允许用户通过诱导缺氧和低碳酸血症（组织水平供氧不足和血液中二氧化碳减少导致死亡的状态）相对无痛地自杀。