Not for losing weight but maybe as a method to determine or train in LT1.

It claims to monitor your co2 output to approximate the fat carb ratio. This seems like something you could possibly use during workouts to determine or stay honest in the zones. Isn’t that what lab ergonomic riding tests do with a mask?

I am notorious about riding too hard of easy workouts as they feel easy early then hard later because I can’t get in these 4+ hour rides others do. So have a habit of riding 2 hours at more.

Useless garbage or maybe some small potential?