Constructed from high performance plastic and silicone rubber, the Venti.Plus™ Precision Test Lung is used for testing ventilator function before the ventilator is applied. The units are calibrated, which makes certain that the resistance and compliance meet various confirmation specifications. ISO-5356-1 standards are met by the 15 mm. connector. This device in simple, lightweight and compact. It is easily used and stored. Airway resistors are optionally offered in sizes Rp 5, Rp 20 or Rp 50. When used, these device simulate resistance. Pressure monitoring ports are also available for use with the resistor kit.