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EasyOne Filter for Flow Tube


Box of 100

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The unique EasyOne Filter with its innovative diffusor guarantees highly accurate measurements while ensuring high filter efficiency, low flow resistance, and minimal dead space volume.


  • Keeps the ambient environment clean for patients and healthcare professionals
  • Low resistance for high quality spirometry
  • Optimal filter efficiency and accuracy
  • Unique patented technology


  • Filter properties, tested at Nelson Labs (US)
  • Bacterial Filtration Efficiency (BFE): 99.99%
  • Viral Filtration Efficiency (VFE): 99.99%
  • Filter pad material: Electrostatic Fibers
  • Dead space: : 60 ml
  • Resistance: 1.5cm H2O
  • Waveform test: Passes ISO 26782 waveform testing required by ATS/ERS (2019)