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MicroGard® Filter – Disposable barrier filter for pulmonary function testing


Independent studies of the MicroGard filter clearly demonstrate that it acts as a barrier to viral and bacterial cross-contamination. 


  • Independent studies also demonstrated that MicroGard’s resistance to inspiratory and expiratory air flow is lower than published recommendations.
  • There are now 3 varieties of MicroGard!
  • MicroGard IIB with oval mouthpiece and assists patients with correct positioning of the teeth and lips (patent pending).
  • And the MicroGard IIC with round mouthpiece for use in combination with separate mouthpiece.
  • The MicroGard® II is the only filter that has gone through a full verification and validation process together with the medical equipment it is used on. We can guarantee optimum measurement performance of the Vyntus, JAEGER, SensorMedics® Vmax and Micro Medical pulmonary instrumentation.
  • Most filtration materials use surface loading as the primary means of removal. With the material used in the MicroGard® II product, the fibre matrix results in depth loading, where particles are captured throughout the entire filter material, not just on the surface.
  • The filter material is composed of polymer fibers that will not support the growth of mould, mildew, fungus or bacteria.
  • The filter material also is resistant to degradation over time and is able to withstand extreme temperature and humidity.
  • Even with all these advantages, the MicroGard filter is still priced competitively.

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