Hi there
0A 
thanks for taking the time.
At least when we fly together, I wonīt ask you for more air after this. 
Now understand better the difference between the 2 types re air flow management. A step forward for me.
Also at least partly explains why I often get the testy reactions from 777 pilots to a question, however diplomatically phrased, about airflow.
You say that there is a, for various understandable reasons undesirable, option to increase the airflow also on the triple.
- Switching off the recirc fans; does that mean that rather than being partially recirculated, all the air that flows into the cabin is then 'fresh' (bleed?) air?
- And would you or anybody else happen to know the difference in O2 % in the cabin air with both recirc fans on and both of them off? Or is that kind of information not available?
I donīt mean to nitpick, just want to completely understand all the issues.
Makes it easier to deal with stuff when you understand the backgrounds and reasons.