Future Hyundai and Kia cars might never need air fresheners thanks to UV tech

Hyundai and Kia have unveiled a new in-vehicle sanitation technology called Plasma Care UVC, which uses far-ultraviolet C (Far-UVC) light to kill microorganisms. Unlike conventional ultraviolet sterilization, this system is safe for human skin and eyes because it emits light in the 200–230 nanometer range that does not penetrate human skin.

The companies claim the system is particularly effective at eliminating foul odors by destroying the organisms that cause them. To adapt the technology for vehicles, Hyundai and Kia miniaturized the plasma lamp and improved power efficiency, as well as added a specialized optical filter to limit UV wavelengths to the safe range.

A series of tests confirmed the system's effectiveness. The Korea Testing Laboratory reported a 96.8% reduction in airborne viruses within 30 minutes in a simulated cabin. In collaboration with Seoul National University, tests showed a 99.9% elimination of pneumonia-causing bacteria in just 30 seconds. Another test with the Korea Automotive Technology Institute demonstrated a 99.9% eradication of E. coli within 40 minutes in an actual vehicle cabin.

However, the technology has limitations. UVC sanitization only works through direct illumination, so germs can hide in shadows or under seats. Some pathogens can also repair themselves after exposure. Therefore, Plasma Care is intended as an assistive technology to complement regular cleaning.

The system is not yet available in production vehicles. Ongoing tests are ensuring technical validation in line with international safety standards before implementation.