TO8s olfactometer

The TO8s olfactometer is the smallest four-station olfactometer in the world.

The olfactometer meets all requirements of a dilution device for olfactometric measurements according to EN 13725. Using the TO8s olfactometer gives you a complete description of an odour sample.

With all the functionality of the TO8 olfactometer, the TO8s olfactometer is specially designed for travelling. For the user, this means measurements can be taken wherever you are in the world, and international projects can easily be undertaken. Weighing only 21kg (packed in a trolley), the TO8s olfactometer is also permitted on most flights.

TO8s olfactometer


All our olfactometer models are designed to measure odour concentration, odour intensity and hedonic tone. They are fully compliant with the following standards:

  • EN 13725
  • AS 4323.3
  • NCh 3190
  • VDI 3882
  • NVN 2820


    • All functionality of the TO8 olfactometer
    • Extra small and light olfactometer (weighs approximately 9kg)
    • Easy to build, in around 15 minutes on-site
    • Specially designed for travelling

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    Technical Data

    General Details
    Olfasense GmbH, Germany
    Dimension (L x W x H)
    a) assembled
    b) transport size
    a) 420 x 420 x 410 mm
    b) 400 x 400 x 220 mm
    8.5 kg
    Maximum calibration interval
    12 months (according to EN 13725)
    24 months (warranty extension up to 5 years through servicecontracts possible)
    Technical Specifications
    Dilution principle
    Gas jet pumps and calibrated precsion orifices for sample dosage
    Vent for surplus diluted odour
    Outlet air via active carbon filter
    Number of panel members working simultaneously
    Maximum panel size (software setting)
    Analyses time for one sample (EN13725:2003)
    5 min
    Required air supply
    115 l/min, oil-free
    Dilution range
    2² (1:4) - 2¹⁶ (1:65,536)
    Interval steps
    Factor 2
    Dilution accuracy
    < 5%
    Response / setting time
    < 0.1 sec
    Required sample volume
    High concentrations: 1-2 liter Low concentrations: 6-8 liter
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