Pulmonary Function Testing

MicroGard™ II PFT Filter

MicroGard™ II filters provide an easy way to help ensure protection from cross-contamination which keeps both the patient and operator safe without compromising on system performance.


MicroGard™ II filters are used with Vyntus™, Vmax MasterScreen, and Micro Medical PFT instrumentation.


Features & Benefits


MicroGard™ II B has an integrated oval-shaped mouthpiece suitable for adult and pediatric use. The IIB kit includes an oval filter with nose clip. MicroGard™ II C has a round-shaped connector for use with special lung function mouthpieces, ideal for gas dilution and body plethysmographic measurements. The II C kit includes a round filter with nose clip and rubber mouthpiece.


  • 99.999% viral and bacterial efficiency against cross contamination (Nelson Test Report 10003754)
  • Low resistance to airflow
  • Minimal dead space (55mL)
  • Filter housing and filter fleece tested for biocompatibility
  • Three filter configuration versions, two package sizes
  • Validated for compliance with the complete Vyaire Respiratory Diagnostics product line


Product Video

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