Let’s first talk about what CO₂ is, where it comes from, and why it’s important to know its concentration.

Carbon dioxide (CO₂) is a colorless gas naturally present in our atmosphere. It is produced by human and animal respiration, burning fuels, cooking, and even food fermentation. Outdoors, in fresh air, its concentration typically hovers around 400 ppm (parts per million).

However, CO₂ levels can rise quickly in enclosed spaces, especially when more people are in the room and ventilation is insufficient. High levels may lead to fatigue, headaches, reduced concentration, and an overall feeling of “stuffy” air.

Regularly monitoring CO₂ concentration is a simple and effective way to maintain a healthier and more pleasant environment at home, in the office, at school, and in public spaces.

How to Measure CO₂ – Easily and Accurately

To measure CO₂, we offer the CO₂ Monitor Kit, which is ready to use right out of the box—just plug it in and start monitoring real-time values.

You can buy the ready-made kit directly from our HARDWARIO Store. There is no need to worry about wiring or installation. A detailed guide is also available on our Hackster.io profile, where you’ll find diagrams, code, and explanations of how it works.

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Why This Kit?

The CO₂ Monitor Kit uses a precise sensor, wireless communication, and cloud connectivity to track data in real time from anywhere. It’s suitable for homes, offices, schools, and public spaces.

Whether you’re only interested in practical use or want to explore technical details, the CO₂ Monitor Kit provides a complete solution for monitoring air quality.

One thing is certain: we can’t stop breathing, and therefore producing CO₂. But we can measure its level, ventilate properly, and enjoy cleaner, fresher air.

If you follow our blog, we’re preparing more articles with tips and inspiration on using HARDWARIO IoT solutions for monitoring, automation, and smart control.

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