WTW FILTERS l l the European No.1 in filters (88)

FILTERS for your ww unit can be ordered easily and quickly in our ww filter shop. The online WTW FILTER shop with the widest range of WTW FILTERS. All brands, original or alternative wtw filters of our house brand hq filters are available from stock.

WTW FILTERS l l the European No.1 in filters

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How to choose a high-quality WTW filter for optimal air quality


Air quality is an essential aspect of our daily lives. A well-functioning ventilation system with a high-quality heat recovery (WTW) filter can help create a healthy and comfortable living environment. In this article, we will discuss how to choose the best WTW filter to optimise the air quality in your home.

Why is a high-quality WTW filter important?

A WTW filter is responsible for filtering the air supplied and exhausted by the ventilation system. The filter removes dust particles, pollen, mould spores and other pollutants from the air, keeping indoor air clean and healthy.

A high-quality heat exchanger filter offers several benefits:

  1. Improved air quality: A good quality filter effectively removes small particles and allergens from the air, reducing allergic reactions and improving overall air quality.
  2. Protection of the ventilation system: The use of a high-quality filter stops dirt and dust particles before they can enter the system. This reduces wear and tear and extends the life of the ventilation system.
  3. Energy saving: A clean filter ensures optimum airflow, making the ventilation system work more efficiently and saving energy.

How to choose the right WTW filter?

When choosing a WTW filter, there are several factors to consider to ensure you select the most suitable filter:

1. Filter class

WTW filters are classified according to their filtration efficiency, expressed in filter classes. The most common filter classes are G3, G4, F7 and F9. The higher the filter class, the better the filtration efficiency. It is important to understand which filter class best suits your specific needs and requirements.

2. Dimensions

WTW filters are available in different sizes. It is essential to know the right dimensions to suit your ventilation system to ensure that the filter is installed correctly and functions properly.

3. Service life

The lifetime of a WTW filter can vary depending on the type and quality of the filter material. Some filters need to be changed monthly, while others can last up to a year. It is important to know how long a filter will last before it needs to be replaced so that you can plan the maintenance of your ventilation system.

4. Brand and quality

Always choose WTW filters from reputable brands known for their quality. A high-quality filter will last longer and offer better performance than cheaper alternatives.


Choosing the right WTW filter is essential for creating a healthy and comfortable living environment. By considering filter class, size, lifespan and quality, you can ensure that you make the best choice for your ventilation system. Invest in a high-quality WTW filter and enjoy optimal air quality in your home.

Remember that regular maintenance and timely filter replacement are crucial to maintain maximum performance. Contact a professional installer or supplier such as for tailored advice and high-quality WTW filters that meet your specific needs.

Order your WTW filters from today!

What are you waiting for? Order your WTW filters today from the specialist:! Benefit from our wide range, fast delivery and expert customised advice. Improve the air quality in your home or business premises and enjoy clean and fresh air!

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