Clear vision is essential for safety and performance. This feature ensures eyewear lenses resist the buildup of condensation, providing a benchmark for high-performance functionality.
The Science of Clear Vision
In the eyewear industry, anti-fogging is the measure of a lens's ability to manage "fog"—microscopic water droplets that scatter light and block vision. Fogging typically occurs when warm, moist air (from breath or sweat) hits a cooler lens surface. For safety goggles, sports eyewear, and prescription glasses, this performance is achieved through specialized hydrophilic (water-loving) coatings or surface treatments. These treatments work by reducing the surface tension of the water, forcing the droplets to collapse and spread into a thin, transparent film of water that you can see right through, rather than a cloudy mist.
Validation through the High Performance Mark
By meeting our selected technical benchmarks, your eyewear products become eligible for the Intertek High Performance (HP) Mark’s Anti-fogging. We use ISO 18527-3, clause 9.4 with an extended time requirement of 120 seconds.
This mark serves as a ‘proof of performance’ by validating that your product meets the High-Performance Mark standards. You can display the mark on product tags, brochures, packaging, websites, and in both online and offline stores across multiple channels, confidently signal to consumers that the performance claims of your products are verified.
