2017 MODEL S User Manual

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3. Choose how air is drawn into Model S:

Outside air is drawn into Model S (see Ventilation on page 105).

Although less ecient than recirculating the air in very hot or low climate

conditions, this setting draws more air into the rear seating areas, and is

recommended when occupants are seated in the Tesla built-in rear facing

child seats.

Air inside Model S is recirculated. This prevents outside air (trac fumes)

from entering, but reduces dehumidifying performance. Recirculating the

air is the most ecient way to cool the front cabin area. To prevent the

windshield from fogging in some conditions, brieﬂy change the setting

every hour to draw in outside air.

If your Model S is equipped with the HEPA (High Eciency Particulate

Air) ﬁlter, you can ensure the best possible quality of air inside the cabin.

When selected, outside air is drawn in and ﬁltered through the medical-

grade HEPA ﬁlter in addition to the secondary ﬁltration systems. The

HEPA

ﬁlter is extremely eective at removing particles, including

pollution, allergens, bacteria, pollen, mold spores, and viruses. Both the

HEPA ﬁlter and the secondary ﬁltration system also contain activated

carbon to remove a broad spectrum of odors and gases. When you

engage the HEPA option, the fan operates at the highest speed. In

addition, the positive pressure inside the cabin minimizes the amount of

outside air that can leak into the vehicle.

Note: Some gases, such as carbon monoxide, are not

eectively removed

by activated carbon.

4. Choose where air ﬂows into the cabin. You can choose more than one location:

Foot-level vents

Face-level vents

Windshield vents

Note: When air is directed to the foot-level vents, approximately one third of the air continues

to ﬂow to the windshield vents to assist in defogging. However, when air is directed to the

face-level vents, no air

ﬂows to the windshield because the air ﬂowing through the face-level

vents may be adequate to assist in defogging the windshield.

5. Touch the arrows to set the speed of the fan.

Note: Adjusting the fan speed may change the selected setting for how air is drawn into

Model S in order to increase or reduce

airﬂow.

Climate Controls

104 Model S Owner's Manual

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User Manual - Page 105