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HEPA filter for Model 3!?

Discussion in 'Model 3' started by Brandon332, Oct 6, 2017.

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  1. Brandon332

    Brandon332 Member

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    What are people's thoughts on whether they'll eventually offer a HEPA filter option on Model 3, or if a HEPA filter could be custom added after purchase? I have a 2016 MX, and the HEPA filter, perhaps surprisingly, is among my favorite things about the car. It seems like a relatively inexpensive option to provide and one that I don't believe would add complexity to manufacturing.
     
  2. boaterva

    boaterva Supporting Member

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    There were some threads about this being a differentiator for S and X (the usual 'if you want that, get the premium car'), but who knows.

    We may find a lot of options being added to the 3 later in the game. You do pay a price getting an early version (beyond no AWD, large pack, etc.!)
     
  3. Zaphod

    Zaphod Galaxy President (former)

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    Is it really the filter itself that makes the difference or is it the biodefense mode in your X?
     
  4. boaterva

    boaterva Supporting Member

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    Both... you get the big filter, but BDM is just a shortcut for external air/highest speed to pressurize the cabin with clean air to keep out the bios :D (theoretically).
     
  5. vigge50

    vigge50 Member

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    As Tesla moved the hole compartment forward in Model 3 compare to other cars I wonder how mush space it’s left between the frunk and the compartment.
     
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  6. Zaphod

    Zaphod Galaxy President (former)

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    I know, just trying to understand what the OP finds most useful about the HEPA filter. It is pretty common to have cabin air filters albeit probably not HEPA grade filter. So if the 3 had a HEPA filter, but not biodefense mode, would it still be beneficial?
     
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  7. Brandon332

    Brandon332 Member

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    For anyone unclear, I have the HEPA filter and Bioweapon mode since they both come together. While I was waiting for delivery, I was confused about how the filter works during normal (non-bioweapon mode) driving. How it works is that all air that comes through the vents comes through the HEPA filter, including recirculating air and air directly from outside the cabin.

    Since I, like most people, hardly ever drive with the climate off, there's always some air coming through the vents, and the result is that the cabin air is always crisp and clean. As I'm sure most people here are aware, there are the large trucks all over the highways that spew the smelly air. Whenever I'm on the highways, the inside cabin is completely isolated from the disgusting smells, and this is all with normal driving without Bioweapon mode engaged. The filter really makes a huge difference, and seems to eliminate virtually all smells with just normal use, so as a result I've only ever used the Bioweapon mode 2-3 times EVER. I think it's kind of annoying because the air blows somewhat loudly, and it's generally unnecessary due to near complete filtration at normal "auto" AC speeds. The 2-3 times were when there were skunks.

    If people are wondering why I think the filter is one of the best features, it's because of the following: 1) Internal car smell: In all our past cars, I've noticed that after a few weeks the new car smell goes away and is slowly replaced with a somewhat dank smelling "regular" car smell that I'm sure everyone here is familiar with. Hard to explain, but I'm sure you know that "car" smell that develops as a car ages. I'm 38,000 miles into the MX, and the new car smell has long since went away, but the beauty is that the inside smells like NOTHING. Which is surprising, since we eat Wendy's all the time and sometimes there will be a french fry container in the car. But the filter has completely eliminated any smelly buildup. 2) The "pure" feeling that a Tesla gives you: This is very difficult to explain so I'm going to try my best. The two latest cars I've owned were a 2012 Jeep Grand Cherokee and 2015 Dodge Challenger. Both cars were great, but the Tesla is very different in that you get a clean, pure feeling driving it. The acceleration/regeneration and lack of engine render the driving experience to feel a lot more "clean", pure is probably the wrong word for it. The filter really kind of puts a bow around that, very hard to explain. 3) Tesla Bubble feeling: Also hard to explain, but when I'm on the highway, I feel amazing because I'm autopiloting and can't smell anything from outside. So I'm not driving, I have my own air, IDK it just feels great because I'm separated from the dirty ancient ICE world out there.

    When I was waiting for MX I was not expecting to like the filter much at all. And now, if I go back into the Dodge or Jeep, it feels generations behind because of the smells and I'm like "wow I can't believe it's this bad I never noticed before".
     
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  8. Foxhound199

    Foxhound199 Member

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    Not to belabor the point, but the gigantic HEPA filter is what makes biodefense mode possible. You need a very high level of filtration to scrub the air to that quality, but the stronger the filtration, the harder it is to pull air through. For biodefense mode to work, you need to maintain constant positive pressure. This requires pulling even more air in across that filter to achieve that pressure. That's why you end up with that absolutely gigantic filter you see in the X. So the filter is very much a determining factor of biodefense mode.
     
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  9. Zaphod

    Zaphod Galaxy President (former)

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    Thank you for the detailed response. I didn't realize the HEPA filter would be that effective on it's own to remove outside smells. I just recall that it was always touted when the X was originally launched that the biodefense mode main purpose was to create the positive pressure inside therefore keeping out the nasty smell from outside.
     
  10. voltronhb

    voltronhb Member

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    The HEPA filter is also an important differentiator for us since it improves air quality, especially in helping with environmental allergies. May be an incremental reason to go for new S vs 3.
     
  11. croman

    croman Active Member

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    The HEPA filter is a god send. No more ICE fumes. I almost forget that they exist until I exit my dream car and enter the nightmare that is ICE filled society. My LEAF did not allow me that pure smelling internal cabin environment even if it was an EV. I can't wait until there are only EVs and ICEs are in the history books.
     
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