PUF Print


Biotrickling Filter Media puf-circle-for-web

PUF is a biotrickling filter media made of polyurethane foam (PUF). It offers different properties than LWE and therefore is preferred for some applications.




Feature Benefit 
Rigidity The rigid foam structure provides support to minimize compaction, which results in low frictional resistance to airflow
Low Pressure Drop Low pressure drop, even at high flow velocities
Stability Excellent mechanical and chemical properties provide good system stability and long work life
Surface Area High available surface area to support bacterial growth
Hydrophilic Optimum water retention capacity, which supports microbial colonies for biological treatment or waste gas streams