Specifications include, but are not limited to: One (1) new Ultima PF Pulmonary Function System or equal The system must be one of easy access to all patients including those that need wheelchairs. The system must provide testing of patients from pediatric to adult. The system must be mobile, with all the essential components housed within a mobile configuration. The system must have the option of sitting or standing while performing tests. System must offer HL7 interface capabilities that can be unidirectional or bi-directional. The system is required to employ breath by breath Nitrogen washout as the method for measuring functional residual capacity (FRC). The system must use an open-circuit design to minimize patient rebreathing. The system must not require the use of sodasorb-type materials to remove co2. The system must be a flow measuring device. The flow device must be able to measure over the entire clinical range of +/-18L/sec. Measurement of flow and volume must meet or exceed ATS standards for spirometry and DLCO.