PALL 4402 Vacushield™ Vent Device - 50 mm, hose barb (3/pkg)

The Pall 4402 VacuShield is designed to protect vacuum pumps, valves, and lab systems from liquid contamination and aerosols. It is typically installed between a vacuum source and receiving vessel to prevent damage and maintain system performance.

This device uses a hydrophobic PTFE membrane (0.2 µm) that allows air and gases to pass freely while blocking liquids and aerosol contaminants. This ensures efficient venting while protecting equipment and maintaining airflow.

With a 0.2 µm pore size, the VacuShield offers high bacterial and particulate retention, helping prevent contamination of vacuum systems and protecting laboratory personnel from airborne hazards.

This model features a 50 mm diameter, 19.6 cm² filtration area, and hose barb connections for easy integration into tubing systems. It is non-sterile and supplied in packs of 3, making it suitable for routine lab use.

Using a vent device helps extend the life of vacuum pumps, prevent costly repairs, and reduce contamination risks. It also improves safety by blocking aerosols and biohazards before they reach the pump or environment.