MVHR filters

Buy a WTW Filter at HR Shop

Efficient ventilation? For that, you need a ventilation system with a WTW unit (heat recovery). It recovers heat from the extracted air to warm the fresh outdoor air. This allows you to enjoy a healthy indoor climate while saving energy.

For optimal performance of your ventilation system, replace your WTW filters every 3 to 6 months. At HR Shop, you'll find a wide range of WTW filters from all major brands, including Zehnder, Duco, Lemmens, Vasco, and Vent-Axia.

Enter the product name at the top or click through to the right filter, check the delivery time and possible volume discounts, and add it to your cart. We ensure safe shipping. Questions? Contact us, we’re happy to help.

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How a WTW Filter Works

Ventilation systems have filters on the extraction side (fresh outdoor air being drawn in) and the supply side (polluted indoor air being expelled). WTW filters in a ventilation system serve a dual purpose:

• protecting the installation
• purifying the incoming air

For optimal performance of your ventilation, you should regularly check, clean, and replace the filters.

Replacing a WTW Filter

A ventilation system is only as good as its filters. Clean filters ensure a healthy indoor climate and an efficiently working system. Dirty filters may lead to higher energy costs, reduced air quality, and noise from your system.

How often you need to replace your ventilation filters depends on several factors:

• The environment: does your system process clean countryside air or polluted city air?
• The type of home: did a recent renovation create a lot of dust, or have you been living in a clean, finished new build for years?
• System usage: does your WTW unit run day and night or only at certain times?

For more information on replacement frequency, check your device's manual. We recommend changing your WTW filters every 3 to 6 months.

You can easily determine if your filters need replacing by their color. Gray or dark filters have done a lot of work and are (almost) saturated. It’s time to order new WTW filters at HR Shop. Then, simply install them yourself using this step-by-step guide:

1. Consult your device's manual.
2. Unplug your WTW unit for safe operation.
3. Remove the saturated filter from the WTW system and dispose of it with general waste.
4. Insert the new filter into the system in the same way as the old one.
5. Plug the heat recovery unit back in.

Modern WTW units often indicate on their control panel or display that the filters need replacing. Follow the steps on the panel or screen and confirm once the filters are replaced.

Extensive Range of Ventilation Filters

To best serve our customers, HR Shop offers a wide range of heat recovery filters. When buying WTW filters, make sure to select the right one. This depends on the manufacturer, the type of ventilation system, and the desired filter type. You can easily choose the manufacturer by clicking on the appropriate logo above.

The two most common types of heat recovery filters are:

• G4 WTW filter: this coarse filter removes dust and sand from outdoor air.
• F7 WTW filter: this fine filter also removes fine particles like pollen from the air.

Suffer from allergies? Improve your indoor climate with an F7 pollen filter, available for most devices.

If you can’t find the filter you’re looking for in our range or have questions about your choice or order, don’t hesitate to contact Steven. He’ll help you order the right product immediately. If something goes wrong, you have 14 working days to return your WTW filter in its original packaging.

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Volume Discounts for WTW Filters

Our golden tip: order a larger quantity of your ventilation filters at once. This way, you’ll always have sets in stock when it’s time to replace your filters. Most of our filter sets come with the following discounts:

• 5% discount when buying 3 sets
• 7.5% discount when buying 5 sets
• 10% discount when buying 10 sets

Orders over €50 also qualify for free shipping.

Order WTW Filters Online at HR Shop

HR Shop was founded in 2016, but the owner Steven has over 15 years of experience in ventilation, rainwater, and airtightness. As a customer, you can count on a wide range of top-quality products and excellent customer service. Questions about your new WTW filter? Don’t hesitate to contact us, we’re happy to help.