Honda 2003 CR-V Owner's Manual page 137

Heating and Cooling
To Turn Everything Off
To shut off the system temporarily,
turn the fan speed and temperature
control dials all the way to the left.
No air flow can cause the windows to
fog up. It is recommended that you
keep the fan on at all times so stale
air and moisture do not build up in
the interior and cause fogging.
136
Comfort and Convenience Features