The Environmental Health Center, located in Dallas, offers a diagnostic medical program that specializes in identifying the direct relationship between environment and disease. Its offices are designed to eliminate sources of offending substances and includes various amenities, such as furniture made from natural materials, porcelain steel walls, tile floors, full-spectrum lighting, specially filtered water and ventilation systems. It offers single photon emission computed tomography of brain for diagnosis of neurotoxic exposure, differential dementia, chronic fatigue syndrome, drug and alcohol abuse and vascular diseases. Its laboratory services include urines and blood tests, and evaluation of mold, mycotoxins, chlorophenoxy herbicides and pesticides. In addition, the organization provides implant service, physical therapy and air analysis for toxics and particulates.