Hyundai window-tinting tech could save more energy in summer heat | KLRT [Video]

Hyundai has developed a window tint that the automaker claims can help keep interiors cooler—and thus save energy normally used for air conditioning.

Unlike materials that simply darken windows, and reduce outward visibility, Hyundai states in a press release that its Nano Cooling Film reduces interior temperatures by specifically blocking external heat and radiating internal heat toward the outside of the vehicle.

The tinting film is comprised of three layers. An outer layer radiates heat at mid-infrared wavelengths, while two inner layers reflect incoming heat at near-infrared wavelengths, according to Hyundai.

Hyundai Nano Cooling Film window tint tested in Lahore, Pakistan

Nano Cooling Film was first shown in 2023, but Hyundai recently put it to the test on 70 customer cars in Lahore, Pakistan. Hyundai said it selected Lahore because attaching tinting film to vehicle windows is prohibited by local regulations. And with summer temperatures exceeding 122 degrees Fahrenheit, it’s …