Exhalyzer D – Pulmonary Function Testing for neonate, infant, pediatric and adult patients.

Exhalyzer D, a unique system for continuous, simultaneous measurement and display of various pulmonary function parameters even on non cooperative prematures, neonates, pediatrics and adult patients. The combination of flow, volume and pressure measurement with optional modules for: capnography, oximetry, exhaled nitric oxide, FRC/LCI measurements and airway occlusion (lung mechanics) facilitating an integrated assessment of the patient.

The system is capable to perform all lung function test procedures as described in the book «Infant Respiratory Function Testing» (1), Pediatric Pulmonary Function Testing (2) and in the ATS/ERS standards (1). Noninvasive detection of lung inflammation (fractional exhaled NO, FENO test) and there is no sedation required for standard tests

Standard Applications:

  •  Tidal Breathing Analysis
  •  FRC and ventilation inhomogeneity measurements
  •  Lung Clearance Index (LCI) and Slope 3 analysis (SnIII)
  •  Nitrogen Washout FRC measurements
  •  Single occlusion lung mechanics analysis
  •  Capnography and Oximetry
  •  Multiple and single breath FENO analysis

1) J. Stocks, P.D. Sly, R.S. Tepper, W.J. Morgan. Infant respiratory function testing. Wiley-Liss, New York 1996. 2) J. Hammer, E. Eber; Paediatric Pulmonary Function Testing. Karger, Basel 2005. 2) Bates J, Schmalisch G, Filbrun D, Stocks J, Tidal breath analysis for infant pulmonary function testing. Eur Respir J 2000; 16: 1180 – 1192

The Exhalyzer D offer various different kind of spirometry test for neontal to adult patients. The modular system is easy upgradeable and fully compliant with the ATS/ERS recommendations for infant/pediatric pulmonary function testing.

Various lung function tests for total patient care.


Tidal breathing flow volume anaysis for non cooperative infants


Peak flow, FEV1 and TLC measurements for cooperative patients

CO2 and Oxygen

Capnography and oximetry measurements for dead space calculations, Oxygen and CO2 release (RQ)


Single occlusion technique for Resistance (Rint, Rrs) and Compliance (Crs) measurements, manual or automatic, fully patient synchronized by adjustable flow trigger and occlusion time.


FeNO measurments to detect airway inflammation by multiple and single breath technique in accordance to ATS / ERS recommendations.
CLD 88 chemiluminescence Nitric Oxide analyzer - the reference method

FRC/LCI Infant

FRC/LCI Infant
Functional residual capacity and ventilation inhomogeneity measurements during normal tidal breathing by insert gas multiple breath washing/-out technique, no sedation and patient cooperation required

FRC/LCI Pre-School to Adult

FRC/LCI Pre-School to Adult
Functional residual capacity (FRC) and ventilation inhomogeneity measurments (LCI) during normal tidal breathing by Multiple Breath Nitrogen Washout Principle using 100% oxygen.

Exhalyzer D - Pulmonary Function Testing for neonate, infant, paediatric and adult patients.

Flow ultrasonic transit time
Nitric oxide chemiluminescence (reference method)
Carbon oxide infra red absorption
Oxygen laser absorption
Time resolution 10 ns
Sampling frequency up to 200 Hz
Measurement range up to 16 l/s
Detection limit Flow: 0.6 ml/s
Volume: 5 ml standard (2 ml research mode)
Accuracy < 2 % in clinical application, independent from gas mixture
Dead space Set 1: 1.9 ml
Set 2: 7.2 ml
Set 3: 20 ml
Measurement range ± 12 kPa (± 120 mbar)
Accuracy 0.015 kPa
Detection limit 0.015 kPa
Tracer gas (infants) 4 ± 0.5 % SF6 in medical grade air (21 % Oxygen required) or
16 ± 1 % Helium in medical grade air (21 % Oxygen required)
Tracer gas (pre-school and older)
Nitrogen washout system
100 % Oxygen
Bypass flow BW < 15 kg: adjust. OFF, 150 to 250 ml/s
BW > 15 kg: up to 1 l/s (pre-school set up)
Inlet pressure 200 to 600 kPa (29 to 86 psi)
Inlet supply tracer gas S1/4 inch, Swagelok / DISS
Inlet supply air DISS
Modes of operation Automatic (flow triggered), manual
Response time < 10 ms
Closing time select. 50 to 1500 ms
Measurement range 0.1 ppb to 5000 ppb
Detection limit < 0.1 ppb
Lag time (software compensated) < 0.5 s, sample tube type 3
< 0.6 s, sample tube type 1
Rise time (0-90%) < 0.1 sec
Fall time (0-90%) < 0.1 sec
Sample flow rate 110 ml/min ±10 %, sample tube type 1 (patients < 5 kg BW)
330 ml/min ±10 %, sample tube type 3
Cal. gas concentration 0.5 to 4 ppm NO in Nitrogen (1 ppm recommended)
Cal. gas flow rate approx. 600 ml/min
Inlet supply 200 to 800 kPa (2 to 8 bar), 1/8’’ Swagelock
Power uptake 400 VA max
Mains voltage 100 to 240 V, 50/60 Hz
Dimensions: 500 mm x 135 mm x 400 mm (Width x Height x Depth)
Weight 25 kg
Temperature range 10 to 40°C
Permitted humidity range 5 to 95% RH (non condensing)
Power uptake 230 VA max.
Mains voltage 100 to 240 V, 50/60 Hz
Data interface RS 232
Dimensions 550 mm x 100 mm x 400 mm (Width x Height x Depth)
RV-RTC system: 1170 x 550 x 800 mm (Width x Height x Depth)
Weight 5 kg basic unit
80 kg max. incl. RV-RTC option

Pentium i3 type processor or higher, compliant to the Council Directive 93/42 EEC concerning medical devices and the European Safety Standard EN 60601-1 Microsoft Windows 7, 16 MByte of RAM, 10MB of free disk space, USB port, XGA or better graphic adapter, RS232 interface

ECO MEDICS reserves the right to change these specifications without notice


Exhalyzer D product sheet >>>


Spiroware product sheet SPW31-V11 (Leaflet E)


Cleaning Guidance >>>