Communication for handicapped ventilator-dependent patients is a problem, not only for the patient but also for the healthcare personnel. The inability of these patients to vocalize is a paramount problem in their care. This study evaluates the efficacy of a one-way speaking valve on ventilator-dependent patients and evaluates the resulting effectiveness of their speech. Fifteen ventilator-dependent patients were fitted with the one-way Passy-Muir Tracheostomy Speaking Valve and their communicative skills and ease of vocalization were evaluated. This clinical evaluation was done by the patient, a speech pathologist, two nurses in charge of the patient, and the patient's private physician. No complications were observed in any of the patients. All 15 patients showed marked improvement, not only in speech intelligibility but in speech flow, the elimination of speech hesitancy, and speech time. This ability to communicate enhanced the care given by the healthcare personnel. In conclusion, use of the Passy-Muir Tracheostomy Speaking Valve restored verbal communicative skills of ventilator-dependent patients, facilitated care, and greatly enhanced the mental outlook of these patients without observed complications.