[logi_cal869]

Interesting. Is that due to regulations?

Curious: Did the industry ever develop anything from this technology?

https://www.newscientist.com/article/dn28424-breath-sensor-quickly-warns-when-pilots-are-low-on-oxygen/

[SkyDancer]

We’ve read of incidents with that happening so our company made the rule that one person on the flight deck is wearing a mask.

[T.B. Yoits]

The breath sensor was for rapid drops for military pilots. Civilian pilots have been using finger oximeters for years.

Garmin makes a watch that has a built in oximeter.