Chrysler 2006 PT Cruiser Convertible Owner's Manual page 270

270 UNDERSTANDING YOUR INSTRUMENT PANEL
Circulation Control
start up in very hot or humid weather.
Use this button to choose be-
tween outside air intake or
recirculation of the air inside
the vehicle. A lamp will illu-
minate when you are in recir-
culate mode. Only use the re-
circulate mode to temporarily
block out any outside odors,
smoke, or dust and to cool the
interior rapidly upon initial
NOTE: Continuous use of the recirculate mode may
make the inside air stuffy and window fogging may
occur. Extended use of this mode is not recommended.
In cold or damp weather, the use of the Recirculate
position will cause windows to fog on the inside because
of moisture build up inside the vehicle. For maximum
defogging, select the Outside Air position.
NOTE: Recirculation Mode will not operate in floor, mix
or defrost modes.