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SENSOR

CO₂

Carbon dioxide (CO₂) is a key indicator of ventilation and occupancy,

revealing how effectively fresh air is being supplied to a space.

See it in the dashboard →

What is CO₂?

CO₂ is the measurement of the amount of carbon dioxide present in the air, typically expressed in parts per million (ppm). Indoors, CO₂ is mainly produced by people exhaling, so levels rise quickly in occupied spaces such as offices, meeting rooms and classrooms. It shows facility teams whether a space is getting enough fresh air for the people using it, and where ventilation needs improvement. Measuring CO₂ helps building, workplace and facility teams see whether spaces are getting enough fresh air for the people using them and spot where ventilation needs improvement.

 
 
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Stop reacting. Start optimizing.

Gain complete visibility into your building operations, eliminate budget surprises,
and transition from "firefighting" to high-performance management.
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Built for facility mangers

Save time

→ Get a quick overview of your entire portfolio from anywhere

→ Prioritize worst-performing spaces first

→ Generate compliance reports in minutes, not hours
Stay ahead of problems

→ Real-time alerts when conditions exceed thresholds

→ Use trend data to predict and prevent issues

→ Fix problems before they become complaints
Seamless integration

→ Connect to your BMS for automated HVAC optimization
→  Receive alerts in Slack, Teams, or email
→  API access for custom dashboards and analytics

 
Easy to deploy and maintain

→ Fully wireless sensors, no complex cabling
→  Long battery life means minimal maintenance
→ Scale easily as your portfolio grows

 
● THE WHY 

Why does CO₂ matter?

CO₂ isn't just an air quality metric. It directly affects how people feel, focus and perform, and shows how well your ventilation is working.

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Boost productivity


High CO₂ levels can cause drowsiness, poor concentration and slower decision-making. Keeping CO₂ below 1,000 ppm helps employees stay alert in meetings and students stay focused in the classroom, supporting better performance throughout the day.
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Protect occupant health


Elevated CO₂ is a sign of poor ventilation, which means other pollutants and airborne viruses may also be lingering. Monitoring CO₂ helps you catch under-ventilated spaces early, reducing headaches, fatigue and the risk of illness spreading.
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Ventilate smarter


Ventilating too little harms air quality, while ventilating too much wastes energy. Real-time CO₂ data shows when and where fresh air is actually needed, so your HVAC systems can adjust to occupancy and lower energy costs without compromising comfort.
 
 
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CO₂ over time

Track CO₂ levels across rooms and buildings in real time. See when spaces become crowded or under-ventilated and follow patterns throughout the day, so your team can adjust ventilation, improve focus and keep meeting rooms and classrooms fresh.

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● GET STARTED

See CO₂ levels in your buildings

Curious about the CO₂ levels in your buildings? We'll show you what CO₂ looks like in the Airthings dashboard.

Get in touch
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Stop ventilating empty rooms

Our sensors detect when people are actually present. Integrate with your BMS to reduce HVAC run-time by up to 30%.

See how Toma saved 26% on energy bills ->

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Resolve complaints with facts

When a tenant claims air quality is poor, share a live link to the data. Prove your building is performing - or spot the exact issue instantly.


Explore dashboard ->

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