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 of the lens, and inlet and outlet ports formed in the body. A fan 54 is supported in the outlet port of the goggles for drawing air through the inlet port into the interior space, and an air filter 32 is supported in the inlet port for treating air entering the goggles to protect against irritants reaching the eyes of the wearer.