A passage to death often involves trips to the hospital:
通院 (tsūin: to go to the hospital regularly as an outpatient)
to pass + (medical) institution
Some patients require this piece of equipment:
通風機 (tsūfūki: ventilator) to pass through + wind + machine
The first part, 通風 (tsūfū), means “ventilation.” So does its inverse:
風通し (kazetōshi: ventilation)
wind + to pass throughIn either case, the wind blows through a room to ventilate it! Then you add “machine.” And now the wind blows through a person’s lungs.
Nowadays, this term is more popular:
換気扇 (kankisen: ventilator) to exchange + air + fan
The first two kanji, 換気, combine to mean “ventilation.” I like seeing wings, 羽, inside the fan, 扇!