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Science Experts Question Tesla Bioweapons Defense Claims
Some scientists quibble about claims that the Tesla Bioweapons Defense Mode can protect passengers from viruses. But all agree it is an excellent system.

Make no mistake about it, the climate control system for the Model X is superior to anything available from any other manufacturer and will do an excellent job of protecting its occupants from harmful elements in the atmosphere. Tesla describes the system this way, “The biodefense button is designed to allow clean medical-grade air into the cabin and keep contaminated air out. When deployed, it pushes the system into full fresh mode, pulling all HVAC air through the HEPA filter. The fan goes to max speed 11, pulling in enough air to slightly pressurize the cabin, keeping other air from entering Model X.”
But a few people with actual bioweapons experience quibble with the Tesla Bioweapons Defense Mode claims. The issue is not whether the system works, but whether its claims regarding viruses are accurate.
Colonel Randall Larsen, retired from the U.S. Air Force and now the director of the Institute for Homeland Security, tells Gizmodo that he is actually a Tesla fan. “I’m actually building a new house, and I had them put an electrical charger in the garage, just in case I buy a Tesla,” he says. But when told about the Tesla Model X “bioweapon defense mode” he laughed out loud and asked, “So, is Musk actually advertising this?”
To be considered a real HEPA filter, an air filter has to remove 99.97% of 0.3 micrometer particles from the air. That’s fine enough to catch bacteria like anthrax. It will also stop the plague and most other bacteria, as well as most pollen, dust, and fungal spores. “Now, if you’re worried about bacterial agents like anthrax or plague, a good filtering system would probably protect you,” says Larsen.
But viruses are much smaller than bacteria, which means they’re harder to filter out of the air. “Well, 0.3 micrometer won’t hold back viruses. It will hold back most bacteria, but it won’t hold back viruses. So, if you believe that all bio-terrorist agents are bacteria, then you’ll get an increment of protection,” said Michael J. Buchmeier, deputy director of the Pacific Southwest Regional Center for Biodefense and Emerging Diseases at the University of California, Irvine.
The influenza A virus is only 120 nanometers wide, so it can pass through even a 0.2 micrometer HEPA filter without a problem. “It’s a statistical game that we play,” said Buchmeier. “Any filter like that is going to be efficient to a degree but it’s not necessarily 100% efficient.”
Larsen and Buchmeier also point out that, by the time the passengers realize there has been a bioweapons attack, it will probably be too late to take protective action. “The key problem with the bio is knowing when it’s been released,” Buchmeier says. “You know, it’s not like there’s a big bang or something. It’s a pretty extravagant long shot anyway, you know, the idea that you’re going to be forewarned enough to implement this filter in time to prevent any exposure.”
None of which should take away from how good the Model X climate control system is at protecting its passengers. It can filter out allergens like ragweed and cedar pollen, fungal spores like the ones that cause Valley Fever, and irritants like smoke and dust. It could also filter out unpleasant roadside odor. “There are a lot of reasons why you would put a filter like that in, and only one of them is bioterrorism,” says Buchmeier.
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Tesla Insurance is heading to a new state for the first time in years
Tesla Insurance launched back in late 2019, and it was massive because it was the first time a company aimed to cover its vehicle owners in-house without the need for third-party companies.

Tesla Insurance is heading to a new state for the first time in years, as the company is aiming to launch its in-house coverage platform in Florida.
Tesla Insurance launched back in late 2019, and it was massive because it was the first time a company aimed to cover its vehicle owners in-house without the need for third-party companies.
Tesla Insurance goes live with claims of lower rates by 20-30%
However, it has struggled to expand and only offers insurance in twelve states currently.
Tesla Insurance is available in:
- Arizona
- California
- Colorado
- Illinois
- Maryland
- Minnesota
- Nevada
- Ohio
- Oregon
- Texas
- Utah
- Virginia
In California, Tesla cannot offer real-time insurance or telematics due to regulatory rules.
The company uses a Safety Score to adjust rates based on driving behaviors. The current version, which is called Safety Score Beta v2.2, tracks Hard Braking, Aggressive Turning, Unsafe Following, Excessive Speeding, Late-Night Driving, Forced Autopilot Engagement, and Unbuckled Driving to determine the rate it should charge.
Tesla is working to expand into new markets and has filed applications to launch the program into new U.S. states. Back in 2022, it filed to offer insurance to Florida drivers, but it did not launch.
However, the company just filed to update its Private Passenger Auto program in Florida, according to the insurance site CoverageR.
It would be the first new state to obtain Tesla Insurance since Utah and Maryland launched over three years ago.
Tesla has its eyes on other states, including Georgia, New Jersey, Oregon, and Virginia.
It has also tried to expand to Europe, as it opened an office specifically for Insurance. It was also hiring for Legal Counsel specializing in Insurance on the continent, but nothing ever expanded to an actual offering of vehicle coverage.
Tesla Insurance is an advantage for owners specifically because the company is familiar with its vehicles, the parts, and the repair processes that are required to get a car back on the road.
This was a big reason some drivers switched from the previous providers to the in-house Insurance Tesla was able to offer.
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Tesla launches new interior option for rare Model Y trim
Tesla just launched a new light grey interior option for the Model Y L in China, which will cost $1,120.

Tesla has launched a new interior option for the rare Model Y L trim that is available only in China, marking the first new color for the inside of a vehicle in some time.
Tesla has traditionally stuck with either Black or White interior options with the Model 3 and Model Y, although the Model S and Model X have had additional colors. The Model S and Model X still have a Walnut Cream interior option that costs an additional $2,000.
With the mass market models, however, Tesla has maintained the Black or White selections, until now, at least in China.
Tesla just launched a new light grey interior option for the Model Y L in China, which will cost $1,120.
It differs from the white interior slightly, but it is nice for buyers in China to have this third option:
The new color is only available on the Model Y L in China, so customers who take delivery of other trim levels or in other regions will not have this color available to them, just as the vehicle configuration itself is exclusive to that market.
In terms of whether it will make its way to other markets, CEO Elon Musk has said that the Model Y L could potentially make its way to the United States at the end of 2026, but it is not a certainty.
Musk said:
“This variant of the Model Y doesn’t start production in the U.S. until the end of next year. Might not ever, given the advent of self-driving in America.”
This variant of the Model Y doesn’t start production in the US until the end of next year.
Might not ever, given the advent of self-driving in America.
— Elon Musk (@elonmusk) August 20, 2025
This came as a disappointment to many fans and owners in the U.S. because people here have been pushing Tesla to create and manufacture a new, full-size SUV, or at least something more traditional that competes with vehicles like the Chevrolet Tahoe and Ford Expedition.
While the Model Y L is not on par with the size of those vehicles, it is a longer and larger version of the best-selling Model Y.
Tesla China shows off Model Y L’s manufacturing process in new video
Nevertheless, the new interior option is something we could hopefully see added to U.S. vehicles, although it seems Tesla’s focus is truly dialed in on the Cybercab and expanding Robotaxi and autonomy.
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Tesla Gigafactory Texas builds its half millionth vehicle
The milestone was shared via Twitter/X by the official @Gigafactories account.

Tesla’s Gigafactory Texas has officially rolled out its 500,000th vehicle, marking a significant achievement in the factory’s history and reinforcing its role as a central hub in Tesla’s vehicle manufacturing network.
The milestone was shared via Twitter/X by the official @Gigafactories account. “Congratulations to the Giga Texas team for building 500k vehicles,” the company’s X post read.
As could be seen in Tesla Manufacturing’s post, the Gigafactory Texas team celebrated the milestone by posting for a photograph with the facility’s half millionth unit, a white Tesla Model Y. The team held balloons that spelled “500K” on its commemorative photo.
Giga Texas, located near Austin, has ramped its operations since its launch, producing Tesla’s Cybertruck and Model Y. Crossing the half-million vehicle mark solidifies the facility’s importance to Tesla’s overall operations, especially considering the fact that the Model Y is the company’s best-selling vehicle.
While Giga Texas is just producing the Model Y and the Cybertruck for now, the facility is also poised to produce the Cybercab. The Cybercab is expected to be Tesla’s highest volume vehicle, with Elon Musk estimating that the company would be producing about 2 million units of the autonomous two-seater per year.
The Cybercab is unlike any vehicle that is currently produced today, and its production would be quite extraordinary. As per Elon Musk’s previous comments, the Cybercab’s manufacturing line would not look like an automotive production line at all. Instead, Musk noted that the Cybercab’s line in Gigafactory Texas would resemble a high-speed consumer electronics line instead.
“We do want to scale up production to new heights obviously with the Cybercab. Cybercab is not just revolutionary car design. It’s also a revolutionary manufacturing process. So I guess we probably don’t talk about that enough, but if you’ve seen the design of the Cybercab line, it doesn’t look like a normal car manufacturing line. It looks like a really high-speed consumer electronics line,” Musk previously stated.
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