A goggles apparatus 10 is provided with an active ventilation system for reducing fogging of the goggles during use. The goggles apparatus includes, among other features, a lens 12, a body 14 supporting the lens and presenting shielding walls that define an interior space adjacent an interior surface...http://www.google.ca/patents/US5966746?utm_source=gb-gplus-sharePatent US5966746 - Safety goggles with active ventilation system
