Venting and Gas Filtration Applications

Vent Filtration Air Flow Performance

Venting and Air Filtration ProductsIn venting and air filtration applications, air flow is a criticial performance parameter. Pall's products offer Effective Filtration Areas (EFAs) ranging from 7.5 to 300 cm2, allowing users to select the most appropriate vent size for their application. Our hydrophobic membranes prevent the passage of aerosols, protecting equipment and staff. We incorporate rugged polypropylene housings for broad chemical compatibility.

Pall's hydrophobic membranes include: 

  • PTFE: Offers the highest level of hydrophobicity and assures the best system performance when used as a sterile barrier in venting or particulate control. PTFE will not absorb moisture that can cause premature reduction of air flow.  
  • PVDF: Can be gamma irradiated.  
  • Glass Laminate: The most economical choice also provides the highest air flow rates.

Venting Application Selection Guide

 




Pall Preferred Online Lab Community
Application Type Device
Receiving vessels Small volume venting


Valve and pump protection
Isolation or environmental chambers High pressure ratings  Bacterial Air Vents
Carboys Venting carboys

Withstands gamma irradiation
Bioreactors Venting bioreactors


Large filtration area and high air flow rates, Withstands gamma irradiation

Large filtration area and high air flow rates

Small-volume venting
Fermentation tanks Venting fermentation tanks

Withstands gamma irradiation

Small-volume venting
Carboys Venting carboys

Withstands gamma irradiation
Other small containers Small volume venting Acro 37 TF Vent Device
Bioisolation of a vacuum source Small-volume venting

High pressure ratings
Flushing instuments Small-volume venting Acro 37 TF Vent Device
Sterile applications High Efficiency Particulate-free Air HEPA Capsule
Cleaning parts Small-volume venting Acro 37 TF Vent Device