Hyundai Motor Company and Kia Corporation have developed a world-first in-car sterilization and deodorization system that is safe for use while passengers are present [1].

This technology addresses a long-standing safety gap in vehicle hygiene. While previous sterilization methods required cabins to be empty to avoid human exposure to harmful radiation, this new system allows for continuous cleaning during transit.

The system, known as Plasma Care UVC, utilizes a plasma-based Far-UVC lamp [2]. This specific technology emits light in the 200–230 nm wavelength range [3]. The companies said this range is effective at killing microbes and removing odors, but does not penetrate human skin or eyes [2].

This differs from conventional LED UVC systems used for vehicle sterilization, which typically operate at 255–280 nm [3]. Those longer wavelengths can be harmful to humans, necessitating the removal of all occupants before activation.

The South Korean companies announced the technology on Thursday [2]. By integrating this plasma-based approach, the manufacturers aim to provide a constant level of hygiene within the cabin, a feature that could become a standard expectation for ride-sharing and family vehicles.

The system is designed to target both bacteria and odors, ensuring the interior remains sterile without requiring the vehicle to be parked or vacated [1].

a world-first in-car sterilization and deodorization system that is safe for use while passengers are present

The shift toward Far-UVC light represents a move toward 'active' sanitation in public and private transport. By utilizing a wavelength that cannot penetrate the dead layer of human skin, Hyundai and Kia are attempting to normalize continuous disinfection, potentially reducing the spread of pathogens in high-turnover environments like taxis and autonomous ride-hailing fleets.