Efficient Air Purification for Your Home and Business

Discover the world of air filter boxes for duct fans and sustainably improve indoor air quality. Our high-quality filter boxes not only provide effective pollutant filtration but also ensure optimal energy efficiency. We offer selected products from renowned brands such as Vortice, Helios, and CasaFan, which impress with their robust construction and high performance – all at competitive prices. Let us advise you! Feel free to contact us by phone at 0711 787 4078 or via email at kontakt1025@KlimaLex.de to find the right solution for your needs.


 More about Filter boxes for duct fans


RRP 386,75 €
349,99 €

incl. 19 % VAT, excl. Shipping costs

Base price per piece: 175,00 €
RRP 487,90 €
439,99 €

incl. 19 % VAT, excl. Shipping costs

Base price per piece: 220,00 €
RRP 261,80 €
239,99 €

incl. 19 % VAT, excl. Shipping costs

Base price per piece: 120,00 €
RRP 309,40 €
279,99 €

incl. 19 % VAT, excl. Shipping costs

Base price per piece: 140,00 €
RRP 249,90 €
219,99 €

incl. 19 % VAT, excl. Shipping costs

Base price per piece: 110,00 €
RRP 368,90 €
329,99 €

incl. 19 % VAT, excl. Shipping costs

Base price per piece: 165,00 €
RRP 243,95 €
from 219,99 €

incl. 19 % VAT, excl. Shipping costs

Base price per piece: 110,00 €
RRP 474,81 €
429,99 €

incl. 19 % VAT, excl. Shipping costs

Base price per piece: 215,00 €
RRP 91,80 €
84,99 €

incl. 19 % VAT, excl. Shipping costs

RRP 799,68 €
699,99 €

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RRP 422,45 €
from 379,99 €

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RRP 434,35 €
389,99 €

incl. 19 % VAT, excl. Shipping costs

RRP 592,62 €
549,99 €

incl. 19 % VAT, excl. Shipping costs

RRP 209,44 €
189,99 €

incl. 19 % VAT, excl. Shipping costs

RRP 119,00 €
from 109,99 €

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RRP 139,23 €
129,99 €

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Table of Contents

1. Introduction

The air quality in indoor spaces is crucial for the well-being and health of the inhabitants. To ensure optimal indoor air, high-quality air filter boxes for duct fans are indispensable. These systems not only contribute to efficient pollutant filtration but also significantly improve air circulation in ventilation systems. This is particularly important in urban areas where air quality is often compromised. Choosing the right filter box is crucial as it ensures the efficiency of the entire ventilation system and helps reduce operating costs in the long run. This article will cover the basics, advantages, and selection criteria for filter boxes, as well as their installation and maintenance. The goal is to provide you with valuable information to find the right solution for your individual needs.

2. Basics of Filter Boxes

2.1 Definition

Air filter boxes are special devices integrated into ventilation systems to clean the air before it enters living or working spaces. They are equipped with various filter materials that can remove different particle sizes from the air depending on the need. These filter boxes are essential for improving air quality and reducing allergens and pollutants that can threaten health. By using filter boxes, not only is air quality significantly improved, but the risk of health problems, especially for allergy sufferers, is also greatly reduced. The operation of these systems is based on the principle that air is passed through different filter materials that retain pollutants and impurities.

2.2 How It Works

The operation of filter boxes is based on the principle that air is passed through various filter materials that retain pollutants and impurities. Different filter classes are used to filter specific particle sizes. For example, pocket filters capture larger dust particles, while HEPA filters also filter the smallest allergens and fine dust particles. These technologies ensure clean and healthy air circulation in your rooms, which is especially important in urban areas. Proper installation and maintenance of these filter boxes are crucial to achieving the desired results and ensuring the long-term efficiency of your ventilation system. Therefore, selecting and installing the right filter boxes is not only a technical necessity but also an investment in your health and well-being.

3. Types of Filter Boxes

3.1 Filter Boxes for Different Duct Sizes

When selecting filter boxes, it is important to choose the right size in relation to the duct fans. There are filter boxes available for different duct sizes that can be tailored to the specific requirements of your ventilation system. Common sizes include models like Vortice Filter Boxes RLFB7 400 or Helios EF-RLFB7 355. Correct sizing is crucial for the efficiency of air circulation and the performance of the entire system. An incorrect size can not only impair filter performance but also lead to increased operating costs. Therefore, it is advisable to thoroughly inform yourself about the specific requirements of each application before making a selection.

3.2 Different Filter Materials

The choice of the right filter material is crucial for the efficiency of air filtration. The most common materials are:

  • Pocket Filters: These are ideal for filtering larger particles and offer high dust absorption.
  • HEPA Filters: They filter even the smallest particles and allergens and are especially suitable for allergy sufferers.
  • Activated Carbon Filters: These can effectively reduce odors and chemical contaminants.

The choice of filter material should be tailored to the specific requirements and the type of pollutants. A well-informed selection can not only improve air quality but also extend the lifespan of the ventilation system. The various filter options allow you to find a customized solution for your individual needs and thus maximize the efficiency of your ventilation system.

3.3 Replacement Filters for Filter Boxes

Replacement filters are an essential part of the maintenance of filter boxes. They ensure that the filter box can optimally fulfill its function. Regular replacement of replacement filters is necessary to ensure consistent air quality and maximize the efficiency of the ventilation system. Ensure that the replacement filters are compatible with the respective models to achieve the best possible performance. When selecting replacement filters, you should also pay attention to the filter class, as this is crucial for filter performance. Availability and selection of replacement filters are therefore important factors when deciding on a specific air filter box. A well-maintained filter system not only contributes to improving air quality but also extends the lifespan of the entire ventilation system.

4. Advantages of Using Filter Boxes

4.1 Improvement of Air Quality

The use of filter boxes significantly contributes to improving air quality by filtering out pollutants and allergens. This is especially important for people with allergies or respiratory diseases. By providing clean air, not only is well-being promoted, but the health of residents is also protected. Clean air positively affects quality of life and can prevent long-term health problems. Particularly in commercial environments, where consistent air quality is crucial, these products prove to be especially valuable. In addition, well-maintained filter boxes ensure that air circulation in the rooms remains efficient, contributing to a pleasant indoor climate.

4.2 Energy Efficiency and Cost Savings

The installation of high-quality air filter boxes can significantly improve the energy efficiency of your ventilation system. Clean filters allow for more efficient air circulation, which reduces energy consumption. Less dirt and deposits lead to a longer lifespan for your duct fans, reducing both operating and maintenance costs. A well-functioning filter system can therefore also contribute to reducing operating costs. The initial investments in high-quality filter boxes can quickly pay off through savings in operating costs and reduced health risks. By improving energy efficiency, you not only contribute to cost reduction but also make an important contribution to environmental protection.

5. Selection Criteria for Filter Boxes

5.1 Size and Compatibility

When selecting the appropriate filter box, various criteria must be considered. These include the size of the filter box and the type of filter materials, as well as the specific requirements of your ventilation system. A well-informed selection can be crucial for the long-term performance of your ventilation system. Ensure that the filter box is compatible with the existing duct fans to achieve the desired results. An incorrect selection can not only impair the efficiency of the ventilation system but also lead to higher operating costs. Thoroughly inform yourself about the various models and their specifications to make an informed choice and achieve the best possible performance.

5.2 Filter Type and Efficiency

The filter class is crucial to ensure that the desired particles are efficiently filtered out. Inform yourself about the various models and their specifications to make a well-informed choice. Depending on the application, different filter types may be required to effectively filter specific particles. These include, for example, HEPA filters for allergy sufferers or activated carbon filters for odor reduction. The choice of the right filter should always be tailored to the specific requirements and the type of pollutants. A careful selection not only contributes to improving air quality but also to the efficiency and longevity of your ventilation system.

6. Installation and Maintenance of Filter Boxes

6.1 Assembly Instructions

Before installing a filter box, you should have all necessary materials and tools ready. Careful preparation is crucial to carry out the installation smoothly and efficiently. First, choose a suitable location near the duct fan. Then securely attach the filter box to the wall or duct. Ensure that all connections are tight and sealed to avoid impairing efficiency. Proper installation is key to maximizing the efficiency of your ventilation system. Additionally, it is advisable to have the installation performed by a professional to avoid possible errors and ensure the optimal function of the filter box.

6.2 Regular Cleaning and Replacement of Filters

Regular maintenance is essential to maintain the efficiency of the filter box. The filters should be replaced every 3 to 6 months, depending on usage. Be sure to replace the filters according to the manufacturer's instructions to achieve optimal results. A clean filter box contributes to improving air quality and saving energy. Don't forget to clean the outer parts of the filter box as well to avoid dust accumulation. These regular maintenance measures are crucial to ensure that your ventilation system functions optimally at all times and delivers the desired results. A well-maintained filter box not only ensures clean air but also extends the lifespan of the entire ventilation system.

7. Conclusion

In summary, choosing the right filter boxes for your duct fans is crucial for the efficiency and lifespan of your ventilation system. Pay attention to the correct sizes and filter materials to achieve the best possible performance. If you have any questions or need advice, we are always here to help. Also, take advantage of our extensive range of accessories, which you can find under Duct Fan Accessories. Invest in high-quality air filter boxes and sustainably improve your indoor climate!

8. FAQ / Frequently Asked Questions

Filter boxes for duct fans are special devices integrated into ventilation systems to clean the air before it enters living or working spaces. They are equipped with different filter materials that can remove various pollutants, allergens, and particles from the air. These filter boxes not only contribute to improving indoor air quality but also increase the efficiency of air circulation in ventilation systems. This is particularly important in urban areas where air quality is often compromised. Their use is crucial for ensuring a healthy indoor climate and avoiding health problems.

Choosing the right filter box depends on several factors, including the size of the duct fans, the type of filter materials needed, and the specific requirements of your ventilation system. First, you should consider the dimensions of your existing ducts, as filter boxes are available in different sizes. Additionally, it is important to pay attention to the filter class to ensure that the desired pollutants are efficiently filtered out. Familiarize yourself with the various filter types, such as HEPA filters or activated carbon filters, and their specific advantages. A well-informed decision can be crucial for the long-term efficiency of your ventilation system.

In our range, you will find high-quality filter boxes from renowned manufacturers such as Vortice, Helios, and CasaFan. These brands are known for their reliable products used in both industrial and private sectors. Vortice filter boxes, like the RLFB7 400, offer excellent pollutant filtration, while Helios impresses with models like the EF-RLFB7 355. CasaFan is also an excellent choice when it comes to efficient air purification. When selecting, ensure that the chosen brand fits your ventilation system and provides the desired filter qualities.

The frequency of filter replacement depends on various factors, including the usage frequency of the ventilation system and the type of filters. Generally, it is recommended to replace the filters every 3 to 6 months to ensure optimal air quality. In cases of intensive use or in heavily polluted environments, more frequent replacement may be necessary. It is important to replace the filters according to the manufacturer's instructions to maintain the efficiency of the filter box. Regularly changing the replacement filters ensures that air purification remains effective and minimizes health risks.

The use of filter boxes in ventilation systems offers numerous advantages. First, they significantly contribute to improving air quality by filtering out pollutants and allergens. This is especially important for people with allergies or respiratory diseases, as clean air promotes well-being and can prevent health problems. Additionally, high-quality filter boxes increase the energy efficiency of your ventilation system, as clean filters allow for more efficient air circulation. This can lead to lower operating costs and extend the lifespan of your duct fans. Overall, using filter boxes not only improves indoor air quality but also enhances the efficiency of your ventilation system.

Pollutant filtration in filter boxes occurs through the principle of mechanical filtration. The air is passed through the filter box, where it encounters various filter materials capable of retaining pollutants and impurities. Depending on the filter type, different particle sizes can be filtered out. Pocket filters, for example, are effective at removing larger dust particles, while HEPA filters can also filter the smallest allergens and fine dust particles. Activated carbon filters, on the other hand, are specifically designed to reduce odors and chemical contaminants. These technologies ensure that the air entering your spaces is clean and healthy, which is particularly important in polluted urban areas.

Replacement filters are an essential part of the maintenance of filter boxes, as they ensure that the filter box can optimally fulfill its function. Without regular replacement of the replacement filters, the efficiency of air filtration can be significantly impaired, leading to a deterioration of air quality. It is important to consider the availability and selection of replacement filters when deciding on a specific filter box. Make sure to replace the filters according to the manufacturer's instructions to achieve the best results. A well-maintained filter box with fresh replacement filters not only contributes to improving air quality but also to energy savings and prolonging the lifespan of your ventilation system.

To increase the energy efficiency of your ventilation system, you should invest in high-quality filter boxes that allow for efficient air circulation. Clean filters ensure that the ventilation system requires less energy to move the air, thereby reducing energy consumption. Regular maintenance, including cleaning and replacing filters, is also crucial. Additionally, ensure that all components of your ventilation system are well-maintained and free of leaks. Choosing the right filter boxes and replacement filters can thus not only improve air quality but also lower operating costs in the long term.


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