Originally Posted by
BF263533
Many new planes like most 777s and Airbus A340-500s do not have personal air vents, so you cannot control your personal body temperature......................
I have noticed that planes ordered by US airlines generally have the air vents. I have noticed that many aircraft owned by non US carriers do not have the vents. It may not be that the "new planes" do not have the vents, but that the airlines did not order them.
PS - I like it cool.