1. designed to prevent or reduce the formation of fog or condensation on a surface

1. a substance or coating applied to a surface to prevent fogging or condensation

Examples

• The swimmer wore antifog goggles to see clearly underwater.
• Apply antifog spray to your bathroom mirror before showering.
• These antifog lenses are treated with a special chemical coating.
• The car's antifog headlights improve visibility in wet conditions.
• Divers rely on antifog solutions to keep their masks clear.
• The antifog properties of this windshield treatment last for several months.