How Polytech PxR Synthetic Filter Media is Different

Actifil Medium Efficiency Particulate Filter Media is a composite synthetic media that's ideally suited for pocket filters, rigid box filters, and other filter applications, pleated and non-pleated. Its advanced gradient structure uses four different layers of nonwoven material. As a result, this synthetic media provides a unique combination of advantages:

Gradient Structure

The four layers of nonwoven media, from upstream to downstream are:

Inner Scrim

An initial layer of thin gauge spunbond material protects the structural integrity of subsequent layers from wind shear. It also deflects airflow and reduces particle momentum for maximum filtration performance.

Needle Punched Electrostatic Layer

Electrostatically charged polypropylene fleece captures most dust particulates in the airflow. This loosely structured layer provides exceptional depth loading, optimizing dust-holding capacity.

Micro Fiber Layer

AA micro fiber melt-blown nonwoven layer captures remaining dust particles in the airflow. This high efficiency mechanical filter media is strategically placed downstream of the needle punched layer; the two provide complementary performance.

Outer Scrim

A color-coded scrim is the external layer of the composite media. This high strength spun bond nonwoven contributes strength to the composite media. Its color provides a visual differentiation for different filtration efficiencies. Coloration may be tailored to individual customer preferences.