A canary for your home: Birdie drops down when CO₂ levels rise, prompting you to ventilate.


About Birdie
Founded in 2022 by childhood friends, Birdie is a Danish company dedicated to enhancing indoor air quality.
Their flagship product alerts users to poor air conditions by mimicking the behavior of a canary in a coal mine — dropping down when CO₂ levels are high, prompting ventilation.
Interested in backing Birdie — or the entire MAD HOUSE portfolio?
Investor enquiry