Air Management for HVAC Systems

Optimized climatic conditions to protect people

Heating, ventilation, and air conditioning (HVAC) systems can go unoticed.  The effects of them not being properly maintained are however very noticeable. Rather it's uncomfortable climatic conditions, or, the “sick building syndrome”, proper management and maintenance plays a part in protecting people.

The multi-stage Viledon air filtration system

To ensure  proper protection, air filters in HVAC systems require functioning at much higher levels of efficiency. Filtration within these systems must ensure that the level of dust, bacteria, fungi and biological particulates are captured and maintained rather than released back into the air. 

To achieve the required indoor air quality, we combine air filters of different classes and designs into multi-stage systems. Usually a two-stage prefiltration consisting of Viledon pocket filters and cassette filters removes coarse to fine particles. Viledon EPA, HEPA and ULPA filters are used as a final filter stage. They are responsible for reliably arresting finest particles and germs.


Reduce energy costs with Viledon

Combined rising energy cost, with the need to reduce CO₂ emissions creates increased demand for more efficient air filters. The fans of HVAC systems consume about 10% of a building’s total energy consumption, of which between 10% and 50% is attributable to pressure loss in the filters. Reducing the pressure drop in air filtration systems is key to save energy costs while reducing CO₂ emissions.

For the energy-optimized operation of HVAC systems – while still ensuring that filter efficiency is adequate to deliver the necessary indoor air quality – we deliver Viledon air filters. Designed for large dust holding capacity, combined with a low pressure drop curve, creates lower energy consumption, cost, and CO₂ emissions.

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How efficient is your filtration system?

Digital algorithm for optimal filtration

Standardized systems for supply air filtration are frequently inefficient and do not make full use of their potential for optimization. The more specifically filter systems are customized to the respective ambient conditions and plant requirements, the greater performance and reliability they achieve.

Our experts work with you to develop the best filter solution for your plant on the basis of the testing standard ISO 16890. In the filter evaluation, typical urban and rural particle size distributions are considered based on the particulate matter fractions PM1, PM2,5 and PM10, and filter arrestance efficiencies are determined accordingly.

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With e.FFECT, the electronic Freudenberg Filter Efficiency Calculation Tool, calculating the optimal filter solution is extremely simple. The local ambient conditions and specific process requirements enter directly into the calculation. Multi-stage filter systems can then be objectively compared. This simplifies the selection of the best filter concept for your needs.

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ISO 16890 Particle size HVAC Exemplary particle classification to PM fractions

Hygiene guideline VDI 6022 for maximum protection

Requirements for air-conditioning and ventilation systems

The guideline VDI 6022 “Hygiene requirements for ventilation and air-conditioning systems and units”, Part 1, April 2006 sets out the requirements for HVAC systems in design, manufacture, installation, operation and maintenance, which are useful or necessary for hygienic operation in ensuring the protection of people. Under the terms of these guidelines, conventional filters display significant shortcomings. In contrast, Viledon air filters fully comply with all requirements of VDI 6022.

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Discover our products for HVAC

Click on details for more information. Technical data and specific product features can be found in the e-catalog.

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Compact pocket filters

High functional dependability for robustness and cost-efficiency

Compact pocket filters

Filter media that is progressively structured of high-performance nonwovens, produced from non-breaking fibers ensures high durability and long useful lifetime.

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MaxiPleat cassette filters

Patented quality for extreme conditions.

MaxiPleat cassette filters

The technically stable and engineered design of the MaxiPleat series offers continuous reliable operation for even the most extreme conditions.  With a hydrophobic coating, a patented thermal embossing process, and leak-proof casting, these filters provide dependability with cost efficiency.

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HEPA and ULPA filters

Safe air quality to meet the highest standards of sterility

HEPA and ULPA filters

Satisfy the highest requirements for clean air and sterility of filter classes E11 to U15. Reliable protection against particles and microorganisms. The MiniPleat technology ensures a homogeneous media velocity for safe, economical operation.

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