Double Layer PTFE for Sterilization in Air & Vent Gas Applications

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The Vent-Maxx gas sterilizing filters set a new standard for PTFE membrane elements. These filters utilize a technologically advanced membrane in our unique pleat construction to deliver unrivaled efficiency, superior strength, and high flow rates.

Vent-Maxx double layer PTFE membrane filters are designed to remove microorganisms, particulate, and moisture in your most demanding air and gas applications. These liquid validated sterilizing grade filters are designed to meet the highest levels of security required in the pharmaceutical, food and beverage, and biopharmaceutical industries.

Vent-Maxx filters conform to USP Class VI – 121oC and 21 CFR Part 177. Strainrite delivers clear solutions to your air and gas filtration applications.

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Retention Ratings


  • PTFE membranes
  • Inherently hydrophobic media
  • 100% integrity tested
  • High surface area
  • Sterilizing grade in liquids
  • Virus retentive in gases
  • Thermally bonded construction
  • Water intrusion testable
  • Quality control certificate with every filter
  • FDA listed materials per CFR 21
  • Can be steam sterilized multiple times in situ for longer filter life
  • Manufactured in certified clean rooms