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Which one to choose: Original or analog filter?

A lot of our clients ask us why analog filters are cheaper. The others ask about the quality. Let’s dispel common myths: 1. Ventilation equipment manufacturers rarely produce filters themselves. In fact, up to 90% оf them buy filters directly from manufacturers of filters. Filters we sell are used as “original” ones by some ventilation manufacturers. 2. The self-costs of original and high-quality analog filters are similar. The same or similar materials and equipment are used to manufacture these filters. Most of the original filters are manufactured in Central or…

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FLEXIT filters with a synthetic frame!

Synthetic frame is usually used in the automotive industry due to the large filtering area, resistance to extreme climate conditions and hygienic properties. Therefore, Flexit selected such types of filters for some of their ventilation units. The same construction as original ones; 100 % moisture resistant. Suitable for humid Europe climate; Resistant to microorganism growth. Synthetic materials do not provide the possibility to grow microorganisms like molds, bacteria, etc. Wider filtering area. Usually, cardboard or metal frame coverts up to 1 cm to the surface in the edges. Synthetic frame…

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How to change AHU filters correctly?

This is one of the main questions that arise when a customer receives 2 ventilation filters. Especially when you change them the first time. Actually changing filters is easy, so you don’t need to pay any installers to do it. Just follow these rules 1. If the filter classes are different, a more efficient filter is always installed on the outdoor air duct. Meanwhile, G3-G4 (Coarse) or M5 (ePM10) class filters are used for exhaust air filtration, as they provide sufficient protection of the recuperator from contamination while using less…

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Rules of filter selection for the air handling unit

Facebook Which filter to select from all the alternatives? Whether it is SALDA, Komfovent, Systemair, Flexit or Wolf AHU, the basic rules are as follows: 1. Technical documentation of the manufacturer.  The AHU comes with the original set of filters. The ventilation units are tested according to these filters. The manufacturer specifies filter alternatives to this ventilation unit. Therefore, if you choose another class of filters (e.g. cheap Coarse instead of ePM10 or more effective ePM1, if only Coarse is allowed), you would violate the warranty requirements and in case…

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What ventilation equipment seller won’t tell you, or how much does energy your air handing unit use

Facebook If you are planning to build your own house, you will need ventilation with a heat recovery and a bunch of sellers will praise their products. The most of them will point out fantastic amount of energy you will save and will not bother to tell that there is Commission regulation (EU) No. 1253/2014, which requires to provide unit data according to certain conditions, not to theoretical 95% efficiency. Even by providing the data sellers won’t tell that Eco-design data is calculated and not measured at the most cases,…

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