Toyota 2010 Prius Owner's Manual page 298

3-1. Using the air conditioning system and defogger
Defogging the windshield
Micro dust and pollen filter
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
274
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ITO31P113
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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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