The company adds that its filter also reduces some of the pollution outside of the car, and that it's constantly tweaking the filter technology. Replace your filters down the line and your EV might be even more of a clean room than it was brand new.

It's impressive stuff, although the test is more about bragging than real-world practicality (which Tesla also checked, to be fair). You don't need a near-sterile car even in pollution-heavy cities like Beijing, and the odds are that you aren't going to be in your vehicle should someone ever unleash a bioweapon on your home turf. Think of this more as proof that Tesla's over-the-top engineering really works... most of the time, anyway.