Hypoxia work carrying out device for use during fitness training in e.g. sport sector, has mouthpiece with terminal part partially closed to reduce outlet orifice, where threaded part of cylinder is introduced in mouthpiece to close part

摘要

The device has a mouthpiece (1) provided with a terminal part that is partially closed to reduce an outlet orifice (2), where a threaded part of a cylinder is introduced in the mouthpiece for permitting closing of the terminal part with a cover. The outlet orifice varies under an action of a user.