HEPA cabin air filter Tesla Model S

Model S HEPA cabin air filter with activated carbon to reduce the amount of particles entering the cabin.

The HEPA filter captures and filters 99.97% of airborne particles as small as 0.3 microns. It also filters out allergens, household dust, animal allergies, pollen and mold spores. The activated carbon filter reduces odors from pets, smoking and exhaust fumes, and cooking.

It is available for model years 2012-2016 (before facelift). These are fitted from the front.
The cabin filter for 2017-2020 (after facelift) and later is fitted from inside the car under the glove box.

The white side should be down on the filter.