Filter Cleaning accessories

PreTreat protects your filter

Nordic Air Filtration's glass fiber HVAC Pocket filter media with plastic or metal frame offers low energy consumption and conical shaped pockets for optimal airflow.

Increase Initial Efficiency & Protect Filter during Start-up with PreTreat

PreTreat greatly increases initial efficiency by creating an initial sacrificial layer that protects the filter media and improves dust release, especially of sticky dust. The PreTreat layer becomes the workhorse of the filter, resulting in longer filter life which saves money and maintenance time.


PreTreat protects your filter – Your customer benefit at a glance:

  • Increased initial efficiency

  • A highly permeable, protective layer on the surface of the filter media which increases filter performance

  • Improved dust cake release

  • Longer filter life

  • Hydrophobic & oleophobic properties making PreTreat ideal for applications where moisture and oil are present

  • Chemically inert, non-toxic and pH neutral

  • Flame retardant

  • Does not contain lime or diatomaceous earth

Further Products

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Solenoid valves

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Hengst SE
Nienkamp 55-85
48147 Münster
© 2024 Hengst SE

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purifying our planet

Our vision

We make the planet a purer place with our products. We also take this journey as cleanly as possible.


We develop the filtration solutions of the future. For our customers and for society.


Our focus is on energy efficiency. This protects the environment and saves costs.