The fourth edition of Equipment Theory for Respiratory Care employs a comprehensive, competency-based approach to describe the equipment and latest technology used in the respiratory care setting. With an approachable style, the book covers the practice of respiratory theory, including: the administration of oxygen and oxygen mixtures by various devices and appliances; the application of mechanical ventilators to assist or control breathing; the maintenance of clear airways by humidification; the education of patients in the rehabilitation clinic; and many other topics. Additionally, more universal algorithms, an expanded art program, and enhanced Clinical Corner problems round out this new edition.