Honda CLARITY Plug-In Hybrid 2020 Owner's Manual page 198

uuClimate Control SystemuUsing Automatic Climate Control
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Switching between the recirculation and fresh air modes
Press the (recirculation) or (fresh air) button to switch the mode
depending on environmental conditions.
Recirculation mode (indicator on): Recirculates air from the vehicle's interior
through the system.
Fresh air mode (indicator on): Maintains outside ventilation. Keep the system
in fresh air mode in normal situations.
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