Suited to both renovation and new construction

This video explains in 2.18 minutes how Fresh-r makes residents happy

Fresh-r is the best solution for apartments

Residents place increasingly high demands on the health of their homes and governments’ requirements concerning climate and CO2 emissions are ever more stringent.

Fresh-r provides a solution for these demands with the ventilation system made specifically for apartments and small residences.

Problem homes, with moisture, moulds, drafts, odours can be addressed while inhabited due to no-mess installation within half a day. During major maintenance or renovation, the Fresh-r makes one or more energy-label jumps possible, possibly in combination with closing gaps or simple installation.


A prize-winning proposition

Passive House Component Award

For healthy apartments

A Fresh-r ventilates between 20 and 120 m³ per hour. That is why it is so suitable for apartments. Because of the powerful copper heat exchanger, the Fresh-r is so compact that the device fits into the outer wall and pipes are not needed. And it’s not just space that Fresh-r saves.

A Fresh-r ventilates as demand-driven, where and when it is required. The function of the residential zone determines which ventilation is most suitable. Considerable money is saved with simple adaptations. Furthermore, it’s also a no-regret measure, since the de-central ventilator with heat exchange also continues to work under more stringent climate demands.

The limited maintenance is also quite easy and can be done by the residents themselves. So Fresh-r is the most cost-efficient solution for apartments – both the purchase and the maintenance.

Because Fresh-r turned out to be the best solution for keeping healthy and comfortable interior air up to snuff, it won the Mitros housing corporation 100%GZNDWonen Challenge in Utrecht and the Passive House Component Award in Germany.

The energy transition must remain affordable

Fresh-r is like a breathing window. It ventilates stale air out and fresh air in, while keeping the warmth inside.

You don’t need to generate energy that you save

Fresh-r’s de-central ventilation uses the heat from outgoing air to warm up the fresh air coming in. This saves between 80-90% of heating costs. The device keeps on working in freezing temperatures, making the demand for heat much lower.

This way, a smaller heat pump can be used, or less infrared heating. So the initial investment in heating capacity and monthly fuel consumption costs are much lower.

Fresh-r is installed in the following housing corporations’ residences, among others: De Goede Woning, Mitros, Plavei, Viverion, Woonwaard, Wonen Limburg

To measure is to know

Fresh-r's web-app gives insight into performance.

Remote monitoring

Fresh-r measures the levels of oxygen, humidity and (optionally) particulates in the interior air so that it know when and where to ventilate. This data is viewable in the web app. So residents and managers can always see the condition of an apartment’s interior climate and the operation of the ventilation. Also remotely.

More about the Fresh-r web app

Schedule an appointment

We’re glad to explain things in person.

Call a halt to drafts, odours and moulds. Improve your interior climate? Save energy? Looking for the lowest investment, consumption and maintenance costs for making apartments Paris-proof? We will be glad to explain personally how Fresh-r succeeds in this. Please call +31 88 818 2600 or schedule an appointment by filling in the fields below.

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How healthy is the air in your home?

Fresh-r gives realtime insight into performance

Fresh-r continuously measures the quality of the air in your home

Healthy air has lots of oxygen and very little CO2 or contamination. The Fresh-r web app shows this. If oxygen levels decrease or humidity levels increase, ventilation starts. Fresh-r ventilates without loss of heat. The web app also shows you the amount of energy saved.

More about the web app

Designed not to be noticed

Fresh-r achter het behang

All well and good that Fresh-r uses intelligent sensors and controls to recover heat and keep the air healthy, but I prefer not to have to notice it.

Fresh-r fits behind the wallpaper

Once it’s been installed, you need not notice the Fresh-r at all. It works automatically. Since incoming air is warmed up, you no longer feel cold drafts and, at a distance, you don’t hear the fans.

What you do notice are the savings on your energy bill.

Show what’s happening behind the wallpaper

Free ventilation plan


Good ventilation keeps the air healthy and your house free of moulds

Want clean, oxygen-rich air in your home? And absolutely no mould? Or do you want your home to be ‘Paris-proof’? Then send us your floor plan via info[at] or by using the form below. We’ll send you a ventilation plan within a week. No obligation at all.

Or feel free to call with questions +31 88 818 2600.

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You don’t need to generate energy that you don’t lose

Fresh-r is like a breathing window; stale air is blown out, fresh-r air goes in and the warmth stays inside.

Fresh-r is like a breathing window

It keeps warm air in and fresh at the same time. In the summer it works the other way around. Then, cool air is kept inside. The Fresh-r fits into the wall or window frame and doesn’t take up space.

The Fresh-r can also be placed against the wall, requiring only two 160 mm holes. During renovation, the front surface of the cavity wall can be sawn out and the entire unit then sits in the cavity. The unit is built-in beforehand in prefab walls or frames.

Even when it’s freezing outside, Fresh-r continues to work well. This keeps heat demand much lower, allowing for the installation of a smaller heat pump or less infrared heating on the road toward heating without gas and energy neutrality.

Unique copper core

Unieke koperen kern

Unparalleled thermal efficiency

A heat exchanger of finely woven copper wire makes Fresh-r compact and efficient. Because copper conducts heat 1000x better than plastic, the material from which other heat exchangers are made.

Outgoing and incoming air never touch each other. Nonetheless, heat is transferred from one to the other. This takes place by means of extremely fine copper wire. Heat flows from warm to cold; with copper, this happens with a heat transfer coefficient of 400 W/mK. So the Fresh-r heat exchanger is extremely effective. The results of this is that the heat exchanger is compact, the fans use less energy, work as demand-driven and are quieter then other ventilators with heat exchangers. In this manner, the Fresh-r device sits in or on the exterior wall or in the window frame without bothering the residents.

Problem homes, with moisture, moulds, drafts, odours can be addressed while inhabited due to no-mess installation within a day and a half. During major maintenance or renovation, the Fresh-r makes one or more energy-label jumps possible, possibly in combination with closing gaps or simple installation.

Fresh-r is the only de-central ventilation with heat recovery certified by Passiefhuis; it complies with BENG standards and has a statement of equivalence for the (Dutch) Construction Act.

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