Toyota 2015 Prius Owner's Manual page 336

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
336
PRIUS_OM_OM47A17U_DVD_(U)
Press .
The air conditioning system con-
trol operates automatically.
Recirculated air mode will auto-
matically switch to outside air
mode.
again.
I n f o r ma t i o n P r o v i d e d b y :