What Is Rear Window Defroster?

What Is Rear Window Defroster? A defogger, demister, or defroster is a system to clear condensation and thaw frost from the windshield, backglass, or side windows of a motor vehicle. The rear window defroster was invented by German automobile engineer Heinz Kunert. How does the rear window defroster work? Those lines are the rear windshield’s