Although the biofield devices described here operate through a great diversity of mechanisms, these devices all share the common quality of being most clearly understood within a biofield framework, wherein information flow or the capacity to create organization acts across hierarchical levels to coordinate biological activity. Elements of this framework are already well accepted by the biomedical community and have been applied through several device modalities, including ECG, EEG, other electrophysiological techniques, some EMF therapies, ultrasound, thermal imaging, and techniques using light like LT.

Two 20-minutes sessions of PEMF therapy one day apart were effective at reducing a pleural effusion in a 61-year old female following open heart surgery.