Nishiyama T, Hanaoka K
Department of Anesthesiology, Faculty of Medicine, University of Tokyo.
Masui. 1996 Jun;45(6):763-5.
A new colorimetric carbon dioxide (CO2) indicator Colibri is a disposable, compact and light weighted device. Colibri does not need to be calibrated and is easily usable in an emergency. It indicates blue with CO2 below 4 mmHg and becomes yellow with CO2 above 40 mmHg. In comparison with EASY CAP, Colibri functions for a longer period and it has a humidifier and a bacterial filter. Colibri is useful for emergency situations and anesthetic care.
