News
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.
News
Tesla Semi frames stack up in Nevada as production nears
Tesla Semi frames are being spotted outside of the Nevada production facility ahead of initial high-volume manufacturing.

Tesla is moving closer to the initial production of the Semi later this year, and outside of its dedicated factory in Nevada, which will be responsible for building the all-electric truck, frames, and other parts of the vehicle, are beginning to stack up.
The Semi production facility is located on the same property as Gigafactory Nevada, and is moving closer to completion as the construction crews on site have already enclosed walls.
Semi Factory progress update pic.twitter.com/OQ1oXvnjev
— Tesla Semi (@tesla_semi) April 28, 2025
Now, production is moving even closer as parts of the Semi were spotted outside of the Semi production facility in Nevada. The images were captured by Zanegler, a Tesla Semi enthusiast and Giga Nevada tracker:
Assemble these parts and you have the beginning of a Tesla semi. pic.twitter.com/ygCBUjWcJ3
— Zanegler (@HinrichsZane) May 26, 2025
The Semi is already used by a handful of companies, including U.S. Foods, Frito-Lay, and PepsiCo. However, the vehicle is not up for public use quite yet, as Tesla is working with various companies to carry out pilot testing of the Semi to see how it performs during regional runs.
Tesla Semi fleet from Frito-Lay gets more charging at Bakersfield factory
The results have been very encouraging, with the Semi even completing a 1,000-mile run in a single day two years ago.
Now, Tesla is truly focusing on the launch of the factory, which will put production into full swing moving into 2026. Earlier this year, Lars Moravy, Tesla’s VP of Vehicle Engineering, gave an update on the Semi and the company’s current timeline for the product:
“So, we just closed out the Semi factory roof of walls last week in Reno, a schedule, which is great with the weather. In Reno, you never know what’s going to happen. But we’re prepping for mechanical installation of all the equipment in the coming months.
The first builds of the high volumes in design come late this year in 2025 and begin ramping early in 2026. But as we’ve said before, the Semi is a TCO, no-brainer. I think it’s really similar to Optimus. It’s going to be set by how much people pay and it has the total cost of ownership, it’s much, much cheaper than any other transportation you could have.”
Tesla also started ordering parts for the Semi and Cybercab after the tariff situation between the U.S. and China was alleviated.
News
Tesla teases new color while testing refreshed Model S, X
Tesla teased a new color that could be coming to the United States with the new Model S and Model X.

Tesla appears to be teasing a brand new color while it was testing the refreshed Model S and Model X, which was spotted last week in California.
Tesla currently offers six paint options in the United States, but they are all pretty basic. This has not been a problem for owners as wrapping the vehicles is a common practice, but some people would likely see more versatility from Tesla in terms of their standard paint colors.
This is especially relevant as Europe has been able to have both Midnight Cherry Red and Quicksilver, which were, at one time, exclusive to the market.
Quicksilver made its way to the United States, and Tesla did release a new Red last year with “Ultra Red,” but Midnight Cherry Red never made its way outside the walls of Gigafactory Berlin.
Last week, as the first spy images of the new Model S and Model X were taken and released by The Kilowatts, there was a very noticeable difference with the vehicle, as other changes seemed to be relatively underwhelming: a new paint color.
New factory blue, coming soon to a Model X near you pic.twitter.com/3CuN4j1ipq
— The Kilowatts 🚗⚡️ (@klwtts) May 22, 2025
Many believed this was simply a wrap, but Ryan Levenson of The Kilowatts, a former Tesla employee, dispelled that rumor after several questions about it.
He said that this is absolutely a factory paint color and not a wrap:
New color too! If you know what you’re looking for you know that this is factory paint and not a wrap. pic.twitter.com/jBYrimZIQT
— The Kilowatts 🚗⚡️ (@klwtts) May 22, 2025
More images were shared by @supergeek18 on X:
New paint color for Model S/X 🤩 pic.twitter.com/Pb27JruhXs
— Henry (@supergeek18) May 24, 2025
Tesla released a new color earlier this year, but it was just a revision to Black, now called “Diamond Black,” featuring speckles that give a reflection and refraction of light as a diamond would.
However, this new color is certainly quite different than anything Tesla has previously offered in the U.S. before. It is relatively similar to Glacier Blue, a color Tesla launched in Asia. Earlier this year, Franz von Holzhausen, Tesla’s Chief Designer, talked about bringing the color to the U.S.:
“Glacier Blue is just a color that we’ve been talking about with our team — the team is like right through that window by the way — and we were looking at the impact of silver, how do we get pigment into silver and really add a little bit of personality to it. If you look at our palette, you know it was either darks or white, and so we were looking for something in between. Blue is always a fairly popular color.”
It would be a refreshing addition to the options Tesla currently offers, and a breath of fresh air for those who have been wanting a different look altogether.
Elon Musk
Mark Cuban wants to sell his Tesla due to this polarizing feature
Mark Cuban said this simple Tesla feature will eventually lead to him selling the car.

Known Elon Musk critic Mark Cuban is ready to sell his Tesla because of a simple feature that is one of the more polarizing amongst community members.
Cuban and Musk have gone head-to-head in several back-and-forths on X, Musk’s social media platform, formerly Twitter. However, it is not the public spats that the two have shared that makes Cuban want to sell his car. In fact, it is something relatively trivial and a feature that many could easily adjust to in the matter of a few minutes of driving.
For the entrepreneur and former owner of the Dallas Mavericks, it is a feature that every driver must use, but Tesla temporarily changed it in the Model 3, Model S, and Model X: the turn signal.
With the refreshed versions of the S, 3, and X, Tesla chose to eliminate the turn signal stalk, instead opting for a turn signal button, which is located on the steering wheel. This was a change that was extremely polarizing among the Tesla community, with many requesting that the company reverse the change with the new Model Y.

Credit: Tesla
They listened, and the newest version of the all-electric crossover has a stalk. No turn signal haptics are available on the new Model Y.
This is one feature Cuban said he cannot get into, and instead chooses to drive his Kia EV6, which he said he is “comfortable with.”
On the Your Mom’s House podcast, Cuban commented on the stalk and turn signal button dilemma within the vehicle:
“On the Tesla, you’ve got to find [the turn signal] and push the button…while you’re driving. You can’t pay attention to the road as much. [The Kia] doesn’t try to be too fancy. Your turn signal is like, a turn signal.”
It’s hard to imagine that someone’s attention is taken away from the road when pushing a button. In my test drive of the new Model 3 last year, I noted that the button was definitely an adjustment, but it only took a few minutes to adjust to:
“It only took me about three or four turns, or roughly ten minutes, to realize I needed to stop reaching for stalks. I feel like the buttons are super convenient, but there were times I would push the edges or corners, and the signal would not come on.”
At least to me, it’s not super believable that pushing a turn signal button takes your attention away from the road for more than a split second. Do I like the traditional stalk more? Yes. However, it would not make me sell a car I really enjoyed driving.
Cuban also said that his son called the EV6 “a nerd car,” to which he replied, “Exactly.”
-
News7 days ago
Tesla posts Optimus’ most impressive video demonstration yet
-
Elon Musk2 weeks ago
Tesla seems to have fixed one of Full Self-Driving’s most annoying features
-
News2 weeks ago
Tesla VP shares key insights on latest Optimus dance demos
-
News2 weeks ago
Mysterious covered Tesla vehicles spotted testing in Giga Texas
-
Elon Musk2 weeks ago
Tesla CEO Elon Musk confirms Robotaxi will come to Saudi Arabia
-
Tesla2 weeks ago
Tesla resumes shipping Cybercab, Semi parts from China after U.S. tariff truce
-
News2 weeks ago
Tesla is building Cortex 2.0 supercomputer facility in Giga Texas
-
Cybertruck2 weeks ago
Tesla Cybertruck police vehicles escort Trump motorcade in Qatar