Orrilmart

Porous Polyethylene Filter

This type of filter is used in several of our wet/dry Nilfisk vacuums. Made up of microporous plastic material, this filter works especially well collecting liquids because the material is water-, mildew-, rot-, and corrosion-resistant. This filter features 105 filter “fingers” with pores arranged in a labyrinthine design that traps particles on the surface but also in its deep channels. This filter is completely washable and captures particles down to 1 micron in size.

Light industrial vacuums

The standard main filter is an oversized, napped cotton filter. This filter retains 99.8% of particles, down to 3 microns in size. The napping of the cotton provides additional filtering area by furnishing depth to the filter.Specialty main filters for the Nilfisk line include Gore-Tex® and AES Polycomposite. Gore-Tex membrane filters retain 99.995% down to 0.33 microns. They are non-stick, and their smooth PTFE membrane keeps fine dust particles from passing through the filter. Ideal for fine powder filtration, Gore-Tex main filters can be used in conjunction with Gore-Tex microfilters. AES Polycomposite filters are capable of achieving a high separation efficiency when removing particles from the airflow, while at the same time, maintaining a high airflow rate and low pressure. As a result, this filter provides a longer running time because less filter loading is occurring. AES Polycomposite filters retain 99.9986% of particles, down to 0.5 microns in size. The AES Polycomposite filter is ideal for abrasive particles such as cement, steel, and lead. This filter can be combined with an AES Polycomposite microfilter.

Paper Bag

As the first stage of filtration in many of our vacuums, paper bags are available in two forms. The standard bags are made of a two-ply material. The inner lining captures particles, while air passes through the outer cellulose layer. With a filtration efficiency of 99.7% at 3 microns, the paper bag will capture the bulk of large particles for easy collection and disposal. Particles smaller than 3 microns move through this standard paper bag toward the next filter. For dust-free disposal, the container can be lined with a disposable polyliner.
The electrostatic paper bag offers finer filtration capabilities. This two-ply paper bag has an electrostatically charged inner lining comprised of meltdown polypropylene. The inner lining attracts even the finest particles, enabling the bag to be used to capture materials such as toner. The electrostatic paper bag retains 97.8% of particles down to 1.5 microns.