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Give your return units new life and plant trees in Denmark

Should we take your devices back?

It may happen that the company structure, the office or the institution's conditions change to such an extent that you no longer need sensors from ÅBN.

As part of our sustainability promise, we offer to take your old products back to reuse the parts that are working well and sort and dispose of the parts that may be broken.

What happens to my products?

Does the product work as it should?
The product is tested and cleaned and sold on to another happy customer.
Is the product broken?
We separate the product and recycle the functional parts. Parts that cannot be used are sorted and disposed of in the best environmental way.

Choose your return yourself

Cash return

Get up to DKK 300. in cash.

Change to new

Exchange for our new and more advanced models and get up to DKK 500. discount.

Donation for afforestation

We donate up to DKK 500. afforestation via the Climate Forest Foundation

Change to new

Green donation

Contact back

Exchange for our new and more advanced models and get up to 30% off.

We donate up to 20% of the product's new value to reforestation

Get up to 20% of new value in cash.

Your donation goes directly to the Klimaskovfonden

At ÅBN, we offer the opportunity to donate the return amount to the Klimaskovfonden and thus contribute to concrete climate action locally in Denmark. For each returned SKYEN unit, you can help plant between 12 and 20 trees – corresponding to 34.8 - 58 m² of new forest in Denmark. Your contribution supports Denmark's national goal of CO₂ reduction through afforestation.


In collaboration with the Klimaskovfonden, new Danish forests are created, which first and foremost bind CO2. The forests will be protected forever, and the Klimaskovfonden's standard is your guarantee of a documented climate effect. When we use nature's own solutions to bind CO2, future generations will also benefit from more forest with new opportunities to experience nature. The forests protect the water environment and drinking water, they give nature more space and create better conditions for biodiversity in Denmark.

Your returned units can be an important step towards a CO₂-neutral Denmark in 2050.

Read about the Klimaskovfonden
Skovvej med grønne træer

Our mission for a healthier and more sustainable indoor climate

At ÅBN, our aim is to improve the indoor climate through simple but effective action – we believe that regular ventilation with fresh air is the key to better well-being and health. In order to achieve this, we depend on the outdoor air remaining clean and free of harmful pollutants.

We work daily to protect and improve the fresh air, which is the foundation for a healthy indoor climate. If the quality of the outdoor air deteriorates, the argument and the possibility of creating an optimal indoor climate by simply opening the window is weakened.

With the UN's Global Goals as our guideline, ÅBN strives to create a sustainable future where clean air – both inside and outside – is available to everyone.

Read about our work with the UN World Goals

Contact us for your return

Write how many units you want to return and with which of the three methods above. We will respond within 24 hours.