Steam Sterilization as recommended by the CDC:

Featured, News

“Of all the methods available for sterilization, moist heat in the form of saturated steam under pressure is the most widely used and the most dependable.”

You can check the full article by the Centers for Disease Control and Prevention here:

Air India sanitizing with EV3000i’s 170 °C / 340 °F #drysteam! It takes just a few seconds for the EV steam to secure the seats for the next passengers.
Commercial airplanes transport a large number of people on a daily basis and the possibility to get sick during a flight is high. EV3000i‘s dry steam ensures perfect hygiene and disinfection of mass used areas.
Foot areas are carefully treated.
Hygiene standards don’t make a class difference!
The aircraft’s galleys are also taken into consideration and carefully disinfected with dry steam.
No germs and food residue are left behind.