Toyota Prius Owner's Manual page 345

Defogging the windshield
Pollen removal mode
Press
Outside air mode switches to recirculated air mode. Pollen is removed
from the air and the air flows to the upper part of the body.
Usually the system will turn off automatically approximately 3 minutes
later.
To stop the operation, press
PRIUS_OM_OM47A19E_(EE)
3-1. Using the air conditioning system and defogger
.
Press .
The air conditioning system con-
trol operates automatically.
Recirculated air mode will auto-
matically switch to outside air
mode.
again.
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