In an age where we spend up to 90% of our time indoors, air quality is more important than ever. Invisible pollutants—especially carbon dioxide (CO₂)—can affect everything from our focus to our long-term health. That’s where CO₂ Ampel devices come in, offering a simple yet powerful way to monitor and improve the air you breathe. https://shop.tecsys.de/various/co2-ampel-design-home-office.html