Allmedicus plethysmographic and signal processing technologies offer unprecedented ease in assessing integrated ventilatory functions and airway reactivity in conscious, unrestrained small animals. Our new‘Dual’OCP-3000 system will reduce your research effort remarkably by measuring two animals simultaneously in a system. Furthermore, application of additional‘inner chamber’makes you handle animals much more easily, and enables a number of measurement in a short time. Non-Invasive, Unrestrained plethysmographic methods minimize both physiologic reactance and animal preparation time. The animal is unstressed, free to move around the chamber, with the bias flow supply providing a constant source of fresh air. This system is also designed for administration of a variety of liquid or dry aerosols, in a controlled and repeatable manner.