Assorted electrotherapy electrodes c. 1918–1920s The source of<unk> ity for an<unk> was usually a frictional<unk> al machine. The patient was seated on a wooden stool, and both the patient and the stool insulated from ground by a platform on glass legs or some other insulator. In some arrangements, the patient was lying down rather than seated. The patient was then charged with static<unk> ity either by direct connection to one electrode of the generator (usually the positive), or else through electrostatic induction by holding a large electrode close to the patient's body. The<unk>  tension applied was around . Treatment could take several hours. Following charging the patient was "bathed" in<unk> ity, hence the name of the procedure. This can be observed in a darkened room as a luminous discharge around the patient, especially at the hair and extremeties. The<unk> treatment was painless, but it caused the patient to warm and sweat, and the heart rate to increase. It also caused the hair to stand on end. The<unk> could form a treatment in itself. It could also be the first stage in further treatment. A common procedure was to draw sparks from the patient after charging, especially from the spine.
Electric bath 
Hug machine
Pharmasave
Mustard bath
Electronic cigarette
Aid station
Adult diaper
Anaesthetic machine