Canairi reminds people to crack a window when indoor air quality drops

Carbon dioxide isn't just warming the planet. When it comes to our immediate environment — homes, offices, schools — CO2 is a strong indicator of indoor air quality and of ventilation. It's also an odorless gas that humans can't detect.

But Canairi can. A wall-mounted device in the shape of a small yellow bird — inspired by the canaries that coal miners used to detect carbon monoxide — Canairi perches upright when air quality is good. When its sensors detect increased levels of CO2, it drops down dead, creating a visual nudge to ventilate by opening a window or turning on a fan.

Created by a Danish startup, Canairi will be launching on Kickstarter soon.