Tesla promotes the new HEPA filter on new Model 3 on Weibo
Tesla
In September, Tesla introduced its updated Model 3. The car received a number of changes, from the exterior and interior, to improvements under the hood. One of the significant changes was the addition of a HEPA filter, so there is a possibility that the company will also provide Bioweapon Defense Mode.
Updated Tesla Model 3 Gets HEPA Filter
Tesla's official Weibo account (via @VidasL/X) today posted information about HEPA filters in its cars. The company did not list specific models that are equipped with them. However, one of the images contained a new Model 3, and the text on it talked about HEPA filters and their effectiveness.
Previously, the car could not be equipped with the much larger HEPA filter. However, it was a feature that highly desired by the owners as it could provide the Bioweapon Defense Mode feature. Since Tesla has largely upgraded the Model 3 and made a fundamental redesign, installing a HEPA filter appears to now have become possible.
What is Bioweapon Defense Mode?
Bioweapon Defense Mode is an advanced air filtration system to protect vehicle occupants from various air pollutants. It uses a HEPA filter to condition the air inside the vehicle, and provides protection against exhaust fumes, smoke, allergens, airborne pathogens, and other potentially hazardous particles.
HEPA is a high-performance molecular air filter with more than 99.97% efficiency, providing hospital-grade air filtration. The filter is capable of capturing particles up to 0.3 micrometers in diameter, and also has a secondary filtration system with activated carbon filters to remove odors, gases, bacteria, viruses, pollen, and mold spores.
Can we expect Bioweapon Defense Mode in the updated Model 3?
As of now, Tesla has not made an official announcement that its updated Model 3 will have Bioweapon Defense Mode. However, the installation of a HEPA filter in the car hints that it may be available to owners down the line. In September, @VidasL reported that he had discovered the Bioweapon Defense Mode for Model 3 in the Tesla App. It appears this also was a hint at the addition of the long-awaited feature to the only Tesla model that did not have it.
Update: Tesla has now edited their post on Weibo. The text remains the same, but the background is now of the updated Model Y in China with ambient lighting on the dash, instead of the new Model 3. It appears that sharing the image with the Model 3 may have been a mistake, but we should know more soon.
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Tesla recently hit the news for purchasing approximately $2M in LiDAR sensors from Luminar, one of Tesla’s long-term suppliers. You’ve probably seen photos of Tesla’s Semi and various Tesla models, including the Model 3 and Model Y sporting LIDAR equipment on the roof. These cars drive around with manufacturer plates scanning streets and highways.
However, many people confuse Tesla’s purpose in purchasing LiDAR equipment with using it for FSD versus testing. So, let’s look at what LiDAR is, and why Tesla uses it on its Fleet Validation Vehicles.
What is LiDAR?
LiDAR stands for Light Detecting and Ranging – essentially using lasers to measure distances. A laser pulse is sent out, and the time it takes to return is measured – providing extremely accurate distance measurements.
Some companies working on self-driving vehicles, including Waymo and BYD, use LiDAR as part of their self-driving suites, but Tesla is one of the few stand-outs that does not. Even Rimac’s “Verne” Robotaxi – which uses self-driving technology from Mobileye, also uses LiDAR.
While LiDAR can produce extremely accurate and high-quality 3D environments, it comes with its downsides as well. Not only is LiDAR costly and requires large gear strapped to a vehicle, but it also can not be used in bad weather and can have interference issues if there are other strong light sources present.
Why Does Tesla Use LiDAR?
A LiDAR rig mounted on a Tesla Semi for testing FSD.
Not a Tesla App
At Autonomy Day in 2019, Elon Musk mentioned that LiDAR isn’t the solution for self-driving cars – it's just a crutch. Thus, Tesla hasn’t used LiDAR for any production self-driving software.
Instead, Tesla uses it exactly how it's described – they use it to gather ground-truth data. This data is then used to feed Tesla’s Full Self Driving system – which helps validate its vision-only system's accuracy. LiDAR provides very accurate measurements to help ensure that FSD’s perception of space is accurate – and is only used by Tesla to ensure that its AI technology which is the brains of FSD is capable of accurately interpreting depth from just visual data.
While sources other than Bloomberg haven't confirmed this report, Bloomberg has a positive track record of reporting on financial decisions. We’ll be sure to update the article if there is confirmation on X from Elon Musk or another Tesla senior official.
Tesla’s stock has dropped nearly 8.5% over the day, ending back-to-back gains over the last two weeks. It closed yesterday at $ 241 after hitting a peak of $270 earlier in the day before the news broke.
Why the Delay?
The delay – of approximately two months – has been communicated internally, but not publicly announced just yet. Bloomberg goes on to mention that the design team was told to rework certain elements of the Cybercab, necessitating the delay.
If Bloomberg’s report is correct, it sounds like Tesla’s unveil event will be largely focused on showing off the vehicle, instead of demoing how it will work. Of course, it could still be both, but given past events, Tesla has always shown off the vehicle years before it hits production.
Rimac recently showed off their version of robotaxi vehicle named Verne, and surprisingly, it could almost pass for Tesla’s own robotaxi. A lot of design cues in Rimac’s version are elements we have already seen or expect to see in Tesla’s autonomous taxi.
A recent Tesla patent revealed that Tesla is incorporating a sanitation system into their robotaxi that will be responsible for analyzing and cleaning the vehicle’s interior, although the delay itself is likely tied more to a physical feature rather than software.
Another element we know almost nothing about is how Tesla plans to charge these robotic taxis. Will they rely on the existing charge port and adapt a solution like the robotic charging arm (video below) we saw almost eight years ago, or will wireless charging or a dock finally become realized?
While the delay for Tesla’s event appears to be related to the vehicle’s design itself and not further development of FSD, Tesla is wasting no time in getting FSD working for the upcoming vehicle. Model 3 vehicles have already been spotted with camera locations that resemble a robotaxi.
Is the Delay Accurate?
We expect that this delay might actually be true – Elon Musk usually takes to X within hours of such news breaking if it's false to refute it and hasn’t done so yet.
Tesla has delayed several of their events in the past, and a delay of a couple of months seems plausible. We should hear from Musk himself soon on whether this report is accurate.
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