Protect the ventilator's exhalation and spirometry systems

The Puritan Bennett™ Re/X700 expiratory filter is a reusable filter designed for use with the Puritan Bennett™ 700 series ventilator. It reduces particles and bacteria in the patient’s exhaled gas, protecting the ventilator’s exhalation and spirometry systems.


  • 99.97% filtration efficiency of 0.3 microns nominal particle size at 100 L/min flow
  • Meets CDC requirement for n100 filtration
  • Resistance to flow less than 2.5 cmH2O at 100 L/min when new

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