We trust indoor spaces to protect us, but the air inside them can tell a very different story. Indoor air can be 2 to 5 times more polluted than outdoor air, and in poorly ventilated spaces, the gap can be even higher.
According to the EPA, poor indoor air quality is associated with a range of health impacts, including:
- Headaches, fatigue, and dizziness
- Allergies, asthma, and other respiratory issues
- Long-term risks such as cardiovascular and lung disease
These symptoms are easy to dismiss as everyday discomfort, but they often have a common environmental cause.
Not Just an “Old Building” Issue
Many people assume air quality problems come from outdated or poorly maintained buildings. Surprisingly, that’s not always the case.
Research shows that up to 30% of new or recently renovated buildings still generate excessive indoor air quality complaints
Modern construction focuses heavily on energy efficiency and sealed environments. While this reduces energy loss, it can also limit airflow and trap pollutants inside.
Fresh-looking spaces do not always mean fresh air.
A Simple Way to Take Back Control
For most people, the challenge is not fixing the air. The challenge is recognizing when there is a problem.
That is where Birdie® Pro, a Fresh Air Monitor™, offers a refreshingly simple approach.
- It monitors key indicators like CO₂, humidity, and temperature
- When air quality declines, the bird gently drops
- When fresh air returns, the bird rises again
When air quality is poor, Birdie® Pro will drop down until you open your windows and bring it back to life. Simple as that.
Birdie® Pro drops when the level of CO2 is higher than 1.000 ppm for more than 10 minutes. When the level of CO2 drops below 800 ppm again the Birdie® Pro will return to standing position.
There is no learning curve and no complex dashboard. Just a clear signal that tells you when it is time to act.
Birdie Pro: Going Beyond the Basics
For those who want a deeper level of insight, Birdie Pro adds connected features through an intuitive app.
You can track:
- CO₂ levels
- Temperature and humidity
- Mold risk indicators
- Local pollen levels and outdoor air quality
You can also explore trends over time, customize thresholds, and better understand how your environment changes throughout the day.
Why This Matters More Than You Think
Poor indoor air quality rarely shows up as a dramatic problem. Instead, it creeps in quietly. Improving your indoor air does not have to be complicated. Sometimes it starts with something as simple as knowing when to open a window.
The real challenge is not changing the air. It is noticing that it needs to be changed at all.
Features and Specifications
- Dimensions: ~3.5–3.7 inches (H) x ~1.25 inches (W) x ~0.5–0.6 inches (D)
- Weight: ~2 ounces (≈ 56–60 grams)
- Color options:
- Yellow (bright, vibrant)
- Grey (light neutral)
- Natural Wood (light) (beige / light wood tone)
- Green (soft pastel green)
- Light Pink / Blush (subtle pastel pink tone)
- Dark Brown (wood) (rich, darker wood finish)
- Battery Life: up to 8 months with regular usage
- Recharge Options: USB C-cable (included with the product).
- Charging time: Approximately 8 hours
- Apps/Lights/Sounds: None
- Sensors: CO2, Humidity, Temperature, Mold risk, Pollen, Outside air quality
- App: Native app + Smart Home Connectivity (Homey + Home Assistant):
- Status: Seeking funding on Kickstarter
- ETA for Delivery: August 2026
For more information or to purchase Birdie Pro
About Birdie
Andreas Kofoed Sørensen & Hans Høite Augustenborg founded Birdie® in 2022. The childhood friends grew up together in a small village called ‘Hellebæk’ north of Copenhagen, Denmark.
