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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 is launching a crazy new Rental program with cheap daily rates
This week, Tesla launched its in-house Rental program that will give people a vehicle for between three to seven days, with prices varying and starting at just $60 per day.
Tesla is launching a crazy new Rental program with cheap daily rates, giving people the opportunity to borrow a vehicle in the company’s lineup with an outrageous number of perks.
This week, Tesla launched its in-house Rental program that will give people a vehicle for between three to seven days, with prices varying and starting at just $60 per day.
However, there are additional perks that make it a really great deal, including Free Supercharging and Free Full Self-Driving (Supervised) for the duration of the rental.
There are no limits on mileage or charging, although the terms do not allow you to leave the state you are renting.
Tesla wrote in an email advertising the program:
“Rent a Tesla and see how it makes every errand, commute, and road trip more fun. While it’s yours, try Full Self-Driving (Supervised) and control and monitor your vehicle with the Tesla app.
Schedule your rental for three to seven days starting at $60 per day (plus taxes and fees) and charge for free at any Tesla-owned Supercharger.
Order your own Tesla within seven days of your rental to get up to a $250 credit toward your purchase.”
This is a great opportunity that will convince MANY people to make the jump.
All your concerns about switching are answered within two days. It’s easier than owning a gas car ever has been. https://t.co/QayTf6YVbw pic.twitter.com/TCHqfTRpes
— TESLARATI (@Teslarati) November 8, 2025
Tesla has long adopted the mentality that butts in seats will sell cars, and for the most part, it is a great strategy. Driving a Tesla is different from owning and driving a combustion engine vehicle; it truly feels as if you are in a car from the past when you get back in an ICE car.
This strategy could be looked at as more of a way for people to experience Tesla ownership than anything.
Although some might use it as a typical rental program that will see it be a cool way to drive without putting miles on a personal car, most will use it as the 48-hour test drive was designed for, which is a short-term way to experience EV ownership.
Tesla is only offering this program at a handful of locations currently, including San Diego and Costa Mesa, California.
News
Tesla makes online ordering even easier
Tesla has a great trade-in program that allows you to give the company your vehicle in exchange for cash, even if it’s not an EV. Their trades are mostly fair, but the company seems to undervalue its own vehicles, and there have been plenty of complaints over offers in the past.
Tesla has adjusted its Online Design Studio to make for an easier trade-in process, reflecting the details of the exchange for a more accurate reflection of payment terms.
Tesla has a great trade-in program that allows you to give the company your vehicle in exchange for cash, even if it’s not an EV. Their trades are mostly fair, but the company seems to undervalue its own vehicles, and there have been plenty of complaints over offers in the past.
Trade-ins are usually given by submitting vehicle details, then Tesla sends an email with an offer. Offers are non-negotiable, but do adjust over time, although the latest offer is valid for 30 days.
I traded my ICE vehicle for a Tesla Model Y: here’s how it went
Knowing your new Tesla’s cash price, leasing or loan details, and monthly payment information used to be done by the car buyer. From personal experience, I simply subtracted my trade-in from the cash price of the Tesla Model Y, and I plugged those numbers into the payment calculator.
Now, Tesla is implementing the trade-in process directly into the Design Studio. It will adjust the price of the car and the different monthly payment methods automatically:
Trade-in estimates available directly on our configurator in few states including CA, will cover all of US and Canada next week.
For loyalty customers, if their trade-in VIN is eligible for any loyalty credit, the same will be applied to the estimate. pic.twitter.com/7097vPleMf
— Raj Jegannathan (@r_jegaa) November 8, 2025
The change is already noticed in a handful of states, including California, but it has not rolled out across the board quite yet. It will be implemented in all of the U.S., as well as Canada, this coming week.
The trade-in process is very simple, and after you accept your offer, you simply drop your vehicle off during the delivery process. Making this simple change will be greatly appreciated by owners.
News
Tesla confirms Robotaxi is heading to five new cities in the U.S.
After launching in Austin, Texas, in late June and the Bay Area of California just a few weeks later, Tesla has been attempting to expand its Robotaxi suite to new states and cities in the U.S., and even outside of the country.
Tesla Robotaxi will hit five new cities in the United States in the coming months, the company confirmed.
After launching in Austin, Texas, in late June and the Bay Area of California just a few weeks later, Tesla has been attempting to expand its Robotaxi suite to new states and cities in the U.S., and even outside of the country.
The Robotaxi suite is a ride-hailing service Tesla offers, but the details of it change with each jurisdiction, as regulations vary. For example, in Austin, Tesla can operate the Robotaxi suite without anyone in the driver’s seat, as long as the vehicle does not enter a freeway.

Credit: Tesla
In the Bay Area, a Safety Monitor rides in the driver’s seat, essentially acting as the vehicle operator with Full Self-Driving controlling the car.
The local regulations and how Tesla handles them will continue to be a relevant part of the discussion, especially as the company aims to expand the Robotaxi program to different areas. This has been a primary focus of the company for several months, especially within the United States.
CEO Elon Musk said that Tesla was aiming to launch Robotaxi in Nevada, Arizona, and Florida. However, the company detailed five specific cities where it will launch Robotaxi next during the Annual Shareholder Meeting on Thursday.
Tesla will launch Robotaxi in Las Vegas, Phoenix, Dallas, Houston, and Miami next, broadening its Service Area for the suite to more major cities across the U.S.
It has said it plans to offer the service to half of the U.S. population by the end of the year, but it does not seem as if it will expand to more than a handful of cities this year, which is still tremendous progress, all things considered.
As far as autonomy is concerned, Tesla has always had lofty expectations and has made some even loftier statements.
At the Shareholder Meeting, Musk said that the company would likely be able to enable vehicle owners to text while the vehicle drives, alleviating them from potentially having some of the responsibility they have behind the wheel.
Tesla says texting and driving capability is coming ‘in a month or two’
It is not confirmed that Tesla will roll this out in the next few months, but Musk said there is a possibility.
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