Reliable Protection From Gases in Sensitive Areas

Comprehensive solutions by gas phase filtration

Individual protection for your processes

Prevent corrosion damage and unpleasant odors with multi-stage filtration systems

Contaminant gases can cause corrosion to high dollar equipment, as well as unpleasant odors to facility occupants. The consequences? Health impairments, expensive repairs, and unplanned downtimes. Our solutions of gas phase filtration products and services protect people and processes by reliably remove contaminant gases from the air.

We help you select the right filtration systems and products based on the maximum permissible contaminant gas concentration or odor intensity. The filter modules and multi-stage solutions are tailored precisely to your needs and operate with the highest efficiency.

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Pulp and paper industry

To make paper from wood and pulp, the raw materials must be treated chemically in a number of complex process stages. This results in gases that can cause corrosion in the surrounding machines and equipment.
Gasphasenfiltration Petrochemische Industrie

Petrochemical industry

Petroleum is an important raw material that is used to produce numerous intermediate and end products by means of complex processes. Undesirable components such as sulphur, nitrogen and oxygen must also be removed.

Data centers

The loss of data can affect millions. Data centers, where systems typically operate at higher temperatures, special filtration is required. Even a temperature increase of 10°C doubles the corrosion rate.

Wastewater treatment

Wastewater treatment often produce contaminant gases that cause unpleasant odors and can even damage sensitive electronics. Reliably protect your employees and processes from the consequences with customized filtration concepts.


Considering the aerodynamics and accompanying fuel it requires to transport passengers by air, keeping fumes and odors at bay is an unnoticed convenience that's necessary. This is when reliable gas phase filtration of the air supply is an imperative component in the process.

Fertilizer production

Chemicals such as sulphuric acid and ammonia are used in the production of fertilizers. The processing of these chemicals produces contaminant gases that cause corrosion and must therefore be reliably removed from the process air.

Viledon filterCair service

Your comprehensive service package for maximum filter performance

Improve the performance and efficiency of your gas phase filtration with the sophisticated Viledon filterCair filter management system.

Your benefits: Reliable corrosion and odor protection with customizable packages – consisting of a comprehensive filter selection plus services and warranties at guaranteed fixed costs. Let us help you implement a high-performance and environmentally friendly system solution for your gas phase filtration to achieve a long-term reduction in your operating costs.

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      [Translate to English (US):] Viledon filterCair Service

      Viledon filterCair modules

      Custom-tailored service package for your needs

      With module solutions from Viledon filterCair, we offer you a comprehensive selection of problem-specific services that can be individually combined.

      BASIC package

      • Delivery of high-quality gas phase filters and modules
      • Professional change-out of pellets
      • Reliable module replacement
      • Disposal of used pellets
      • Delivery of high-quality prefilters and fine filters
      Gas Phase Filtration filterCair Service Complete

      COMPLETE package

      • All benefits of the BASIC package included
      • Engineering analysis of the current situation
      • Recommendation of an optimal filtration system
      • Differential pressure check
      • Blower door testing
      • Room integrity inspection
      • Determination of remaining lifetime of pellets
      • Regular measurement of indoor air quality*
      • Ongoing monitoring of indoor air quality*

      * pursuant to ISA-71.04-1985

      Supplement your BASIC or COMPLETE package with the following optional module:


      • Air handling consulting incl. air flow balance sheets
      • Energy efficiency consulting for HVAC systems
      • Optimal filter selection

      We look forward to working with you. Together, we will find the package or, the individual solution that is right for your specific application.

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      In our download area, you will find detailed information about our technologies.

      Corrosion control for key components

      Corrosion control for key components

      Complete gas phase filtration solutions

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      Benefit from our specialized expertise in gas phase filtration.

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      Our services for reliable corrosion control

      Individual comprehensive solutions for gas phas filtration

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      Gasphasefiltration chemwatch

      Turn on. Measure. Monitor.

      Discover the unique ChemWatch Online Monitoring System

      • Large color display
      • Simple & quick data transfer
      • Large memory
      • Individually adjustable alarm signal
      • Personal annotations
      • Gas-tight housing
      • Made in Germany

      Learn more    Software download

      Discover our products for gas phase filtration.

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

      Show products in e-catalog

      ChemControl pellets

      Effective protection against contaminant gases

      ChemControl pellets

      Comprehensive pellets portfolio for the reliable removal of contaminant gases by means of adsorption, absorption, and chemisorption.

      Show details in e-catalog

      ChemControl modules

      Proven performance at reduced cost

      ChemControl modules

      Rugged plastic housings that contain ChemControl Pellets for chemical filtration and are available in four sizes to equip systems for almost all applications. Easy handling and replacement.

      Show details in e-catalog

      Honeycomb (HM) Modules

      High gas removal efficiency

      Honeycomb (HM) Modules

      Reliable protection and removal of contaminant gases from supply or recirculating air. The modules are an assembly of Honeycomb (HM) media housed in either a plastic or metallic frame. Easy installation.

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      Honeycomb (HM) systems

      Energy-efficent and reliable corrosion control

      Honeycomb (HM) systems

      Multi-stage filtration systems with Honeycomb (HM) modules mounted on skids. These systems provides highly purified makeup air for pressurizing control rooms to prevent the intrusion of contaminated air.

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      ChemWatch monitoring

      For an exact measurement of corrosive gases

      ChemWatch monitoring

      Measures and monitors the corrosivity of air in rooms via copper and silver sensors. The only online monitoring system with a large color display for clear visibility at a glance.

      Show details in e-catalog