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FlowTube mouthpiece

  • ndd EasyOne FlowTube mouthpieces avoid cross-contamination between patients and reduce cleaning of the device to an absolute minimum.
  • The ndd EasyOne FlowTube mouthpieces have been engineered to fit perfectly into ndd’s EasyOne Air device to guarantee reliable and high quality measurement results.
  • The EasyOne FlowTube mouthpieces are single-use only and disposable.
FlowTube mouthpiece


  • Designed and precision manufactured by ndd
  • Single-patient use breathing tube effectively prevents cross-contamination
  • Ergonomic design for patient comfort
  • Easy handling for technicians
  • No expiration date
  • No special storage conditions
  • Includes climate protection contribution – taking responsibility for the carbon emissions during production and distribution through myclimate Carbon Reduction and Carbon Compensation program

What's in the box

  • 50 EasyOne FlowTube mouthpieces including a dispenser box
  • 200 EasyOne FlowTube mouthpieces including a dispenser box
  • 500 EasyOne FlowTube mouthpieces (dispenser box not included) Not available in the United States or Canada

Technical specifications


  • EasyOne FlowTube mouthpiece: Polypropylene (PP)
  • Bag: Polyethylene (PE)

Transport and storage information

  • Temperature range: -25 to 70°C (-13° to 158°F)
  • Relative humidity: 5 to 90%, non-condensing
  • Atmospheric pressure: 400 to 1060 hPa
  • No expiration date

Dimensions (H x W x D) and weight

  • Single FlowTube mouthpiece: 21 x 38 x 150 mm and 8 g (1.9 x 1.5 x 5.9 in and 0.3 oz)
  • Dispenser box: 19 x 23 x 19 cm (7.4 x 9 x 7.4 in)
  • Packaging box - 50 EasyOne FlowTube mouthpieces: 20 x 25 x 20 cm and 1 kg (12 x 15 x 23 in and 2.2 lb)
  • Packaging box - 200 EasyOne FlowTube mouthpieces: 25 x 39 x 39 cm and 3 kg (10 x 15 x 15 in and 6.6 lb)
  • Packaging box - 500 EasyOne FlowTube mouthpieces: 31 x 40 x 60 cm and 6.5 kg (12 x 16 x 24 in and 14.3 lb)

Downloads FlowTube mouthpiece

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FAQs FlowTube mouthpiece

The ndd EasyOne FlowTube mouthpiece is a single-patient use product.

To avoid cross contamination, we recommend using ndd’s FlowTube only once. Washing / disinfecting the EasyOne FlowTube mouthpiece might damage sensitive parts, which may compromise test results and safe avoidance of cross contamination.

As a crucial component of the TrueFlow technology, the measurement accuracy is also ensured by the ndd EasyOne FlowTube, which is precision-manufactured and undergoes stringent quality inspections. Therefore we highly recommend using the original ndd EasyOne FlowTube to fully benefit from the TrueFlow technology.


EasyOne<sup>®</sup> Air

EasyOne® Air

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