Data from IndoorCO2Map Now Integrated into the AirSpot Map

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Expanding the global map of indoor air quality with community data from across Europe.

Expanding the Global Indoor Air Map

 

Understanding indoor air quality has never been more important. One of the simplest and most effective indicators of ventilation quality indoors is carbon dioxide (CO₂).

 

That’s why we’re excited to share an important update to the AirSpot CO₂ Map.

 

Clean air advocate Aurel Wunsch has developed a detailed indoor air dataset through his project IndoorCO2Map, which contains extensive CO₂ readings from Germany and other parts of Europe.

 

This dataset has now been integrated into the AirSpot CO₂ Map, significantly expanding the available indoor air quality data for the community.

You can explore Aurel’s original dataset here:

 

👉 https://indoorco2map.com/?lat=51.16570&lng=10.45150&zoom=6.00

 

By combining these datasets, we are helping build a growing global map of indoor air quality that anyone can explore and contribute to.
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Why CO₂ Levels Matter Indoors

 

CO₂ levels are widely used as a proxy for ventilation quality. When indoor CO₂ rises, it typically means that fresh air ventilation is insufficient and that occupants are breathing a higher proportion of rebreathed air.

 

Higher CO₂ levels are associated with:

  • Reduced cognitive performance
  • Poor ventilation
  • Higher concentrations of indoor pollutants
  • Increased potential exposure to airborne contaminants

 

Monitoring CO₂ helps make invisible air quality visible.

A Growing Dataset Across Europe

 

Thanks to the work of Aurel Wunsch and contributions from the clean air community, the AirSpot map now contains extensive real-world indoor air measurements across Germany and Europe.

 

These readings cover a wide range of everyday environments including:

  • Cafés
  • Offices
  • Schools
  • Public buildings
  • Restaurants
  • Event venues

 

Each data point helps build a clearer picture of how ventilation varies across different indoor spaces. As more readings are added, the map becomes an increasingly valuable resource for people who want to understand and improve the air they breathe indoors.

 

Anyone Can Contribute

 

One of the most powerful aspects of the AirSpot map is that anyone can add a measurement.

 

Contributing a reading takes only a few seconds:

  • Open the AirSpot map
  • Select the location
  • Enter your CO₂ reading
  • Submit

 

Your contribution can help others:

  • identify better ventilated spaces
  • make healthier decisions about where they spend time
  • encourage improved building ventilation

The goal is to build a community-powered global dataset of indoor air quality.

 

Measure and Share with AirSpot

 

AirSpot monitors make it easy to measure indoor CO₂ levels in real time.

 

With an AirSpot monitor you can:

  • Monitor ventilation instantly
  • Identify poorly ventilated spaces
  • Share readings on the AirSpot map
  • Contribute to the global clean air dataset

If you’re interested in contributing data, and to help get you started we're offering discounts on our AirSpot Monitors:

 

Click Here For Discounted AirSpot Monitors & Accessories 

Building a Global Clean Air Network

 

Indoor air quality has remained invisible for too long. Projects like IndoorCO2Map and the AirSpot Map are helping change that by making ventilation data open and accessible.

 

We’d like to thank Aurel Wunsch for his work and for connecting his dataset to the AirSpot platform.

 

Together, through shared data and community participation, we can help create a future where people everywhere can find and choose cleaner indoor air.