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When air quality is poor, Birdie® will drop down 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 will return to standing position. It's very important to get airflow when you ventilate your home - you can get optimal airflow by opening multiple windows at once. Danish Health Authorities recommend ventilating for 5-10 minutes 2-3 times a day. Something that is very easy to forget to do. Unlike other air quality monitors, Bird

Birdie Carbon Dioxide Sensor / Fresh Air Monitor

$199.00