Cpap apparatus

A CPAP apparatus comprising:

• a main body including a box body having an upper surface side opened, a cover covering the upper surface side of the box body, and a first opening and a second opening;
• and
• a humidification chamber accommodatable inside the main body and disposed between the first opening and the second opening, wherein
• the box body includes
• a lower wall, and a first side wall and a second side wall, the first side wall and the second side wall being arranged with a space therebetween, and the space being sufficient to arrange the humidification chamber therein,
• the cover includes
• a main wall having a plate shape and a cover-side side wall connected to the main wall and rotatably connected to the first side wall,
• the humidification chamber includes:
• a main body configured to store liquid and having a box shape opened upward, the main body including a third side wall and a fourth side wall;
• and
• a tubular body passing through the fourth side wall,
• the humidification chamber is accommodated in the box body with the first side wall and the third side wall facing one another and with the second side wall and the fourth side wall facing one another,
• the second side wall of the box body has a through hole through which the tubular body and an inside of the main body are communicable with one another with the humidification chamber being accommodated in the box body, and
• the cover-side side wall includes a pressing portion being in contact with the third side wall when rotated.