Hyundai 2009 Entourage Owner's Manual page 158

Features of your vehicle
Air intake control button
This is used to select outside (fresh) air
position or recirculated air position.
To change the air intake control position,
push the control button.
3 142
Recirculated air position
With the recirculated air
position selected, air from
passenger
will be drawn through the
heating system and heated
or cooled according to the
function selected.
OVQ049309
Outside (fresh) air position
compartment
With the outside (fresh) air
position selected, air enters
the vehicle from outside and
is heated or cooled accord-
ing to the function selected.