[455dan]

Originally Posted by Baron Von Zeppelin

Is it full time filtering ? or driver controlled filtering ?

About 3 weeks ago we had bad smog here in central NC from the Canadian fires.
Lasted a couple or few days. I can still smell smoke on many days currently.
Wouldn't want to be up around the source.

Edit, learned something new about how this works today as well.
It is partially driver selectable.


HEPA is "active" at all times, but when bio defense is enabled it also positively pressurizes the vehicle.

from the description under the video:

"Inspired by filtration systems used in hospitals, clean rooms and the aerospace industry, Tesla's HEPA filtration removes 99.97% of airborne particulates, such as smoke, bacteria and pollen. The HEPA filtration system is active whenever climate control is pulling in outside air. For extreme conditions, Bioweapon Defense Mode positively pressurizes your cabin. This prevents pollutants from leaking in as you drive, as all air is filtered through the HEPA and gas media filters. Every new Model Y, S and X comes standard with a HEPA filter and Bioweapon Defense Mode"

I did also try switching to the recirculation mode which turns off the Bio- Hazard fast fan speed pressure mode and that actually also worked for the drive home without smelling the smoke.

I posted it up before but here is the video of the system in use the actual filters showing their size and just how much smoke (smoke grenade) they pumped into the bubble the car was inside.

https://youtu.be/Dx9wrIfqhjM

has to be one of the best features of the car, plus the keep mode where when you go into a store and it is 100+ outside the interior stays the temp you select.

ps. If anyone is interested the Mecum Auctions are being broadcast from Monterey. Motor Trend Network channel