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Healthier indoor climate in schools and municipalities

A better indoor climate strengthens both well-being and decision-making power

... Get the solution for your needs!

A poor indoor climate affects concentration, sick leave and job satisfaction – among children, teachers and employees alike. SKYEN gives you facts, overview and documentation – and makes it easy to act.

Why is it important?

  • "53% of classrooms in Denmark exceed the CO₂ limit" – gymnasioskolen.dk
  • Poor indoor climate is among the biggest causes of sick leave – ewii.dk

Documented benefits of better indoor climate:

Up to 14% better concentration – equivalent to a whole school year's learning

Realdania, "Socioeconomic benefits of improved indoor climate"

58% fewer sick days - equivalent to four days per student per year

World Green Building Council, "The Business Case for Health and Wellbeing in Green Building"

70% Lower risk of disease transmission with airborne viruses and bacteria

Government of the United Kingdom, "New film shows importance of ventilation to reduce spread of COVID-19"

A healthy indoor climate makes a noticeable difference – for children, schools and municipalities

Children spend up to 8 hours a day in classrooms and group rooms, where the air quickly becomes heavy and CO₂ levels rise. This causes fatigue, headaches and restlessness – and takes a toll on both well-being and learning.

With good air quality, stable temperature and low humidity, concentration increases, absenteeism decreases and disruptions are reduced. The result? Better learning, fewer complaints and documentable improvements – to the benefit of both students, teachers and the school's overall working environment.

A good indoor climate is not just a matter of comfort – it is an investment in health, learning and responsible operation.

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CO2-måleren, SKYEN, installeret i klasselokale på skole og lyser rødt | ÅBN
Person lufter ud, ÅBNs CO2-måler, SKYEN, skifter farve fra rød til blå ved bedre indeklima og en blomst bliver frisk igen

What is THE CLOUD?

SKYEN is a Danish sensor that measures the six most important parameters for well-being in the indoor climate: CO₂, temperature, humidity, noise, light and air quality (TVOC) . It is plug-and-play and requires no IT complexity.

  • 📊 Measure CO₂, temperature, humidity, noise, light and TVOC in real time
  • ⚙️ Built-in SIM – no WiFi or network setup required
  • 🔁 API integration for your dashboards, BMS or Smart City platform
  • 📥 Quarterly reports for ESG, APV and school management reports
  • 📱 Access data via QR code, dashboard or export
  • 🇩🇰 Danish solution with EU hosting and high data security
Contact us and hear more

SKYEN is already used in over 70 municipalities and 3,000 classrooms ⭐️⭐️⭐️⭐️⭐️

Mikkel As Hansen
Project Manager, Municipality of Copenhagen

"SKYEN has stopped the indoor climate discussions. Now there is no doubt about when we should go outside."

Peter Lindeskov
Technical Service Manager, Bogense School, Nordfyns Municipality

"SKYEN is generating a lot of (positive) attention – both among students and colleagues."

Mikkel Dam
Committee Chairman, Children and Learning, Faxe Municipality

"The CLOUD is too good to be true – smart technology that we're going to get a lot of use out of."

Maria D. Nielsen
Implementation Consultant, Vejle Municipality

"SKYEN makes it legal to ventilate – we see much more frequent venting and fewer inconveniences."

Birgitte Moller Hansen
Head of Home Care, Halsnæs Municipality

"SKYEN has improved the well-being and health of our employees – the headaches have disappeared."

Axel Bech
Headmaster, Øster Farimagsgades School

"Inexpensive solution for engaging and student-friendly division of responsibilities – highly recommended."

Marianne Leegaard Moller
Senior Citizens and Health Manager, Ærø Municipality

"SKYEN helps us to ventilate when needed."

Inger
senior citizen with sclerosis

"It's a big help to me – especially at night when the air is bad."

OPEN Introducing

Indoor Climate Label™

Face it. Most sensors require half a meteorologist's education to understand.

ÅBN's sensor and web app are built for everyone to join in. Based on the latest research, we have simplified your indoor climate to the Indoor Climate Label™.

All you have to do is scan the included QR code and see which areas you should improve.

Raise your parameters to an AC Indoor Climate Mark™ for the most optimal indoor climate.

SKYEN+ Åbn dk
SKYEN+ Åbn dk

Let us help you understand what's in the air.

What does it mean when the CO2 level shows 1,200 ppm and what significance does TVOC have for your health?

Get answers to all your questions and get recommendations to improve the indoor climate parameters you are having challenges with.

With the right behavior, there is a lot of money to save on energy and sick leave.

The CLOUD provides a measurement every 5 minutes

Gain insight into six different conditions:

See ÅBN's dashboard and the Indoor Climate Label in action

Book meeting

SKYEN actively contributes to the Sustainable Development Goals – and helps you do the same.

With SKYEN you don't just get a gadget. We have collaborated with researchers and municipalities to create the best solution for you. That's why we guarantee:

  • Tailor-made solution for B2B and B2G.

  • Battery-free solutions - because your sensor needs to work every day, year after year.

See exactly where and how the indoor climate affects your everyday life

A good indoor climate is more than comfort – it reduces sick leave, improves concentration and increases well-being. With the SKY , you easily get an overview and action where it matters most – in schools, at work or in meeting rooms.

👉 Order a free trial unit for 30 days

The SKY shows exactly where the challenges are – and how you can take action.

No obligations. No sales pressure. Just usable data.

📞 Call us at +45 40 13 07 05

✉️ Or write to hello@aabn.io and book a trial

Try the cloud

Question?

Please contact us if you cannot find answers to your questions below.

Yes. You get access to real-time data and reports that can be used directly in your APV and ESG documentation.

A good indoor climate increases concentration and reduces fatigue and headaches. SKYEN makes it easy to act – and makes the indoor climate visible to both students and teachers.

The CLOUD comes with API access, so you can easily connect data to your own systems or dashboards. It is already used by several municipalities.

SKYEN combines CO₂ lamp, dashboard, notifications and data collection in one device – without the need for WiFi or technical setup. Customize thresholds and reporting yourself.