风 (wind) +
镜 (lens/glasses) = goggles for blocking wind and sand. Distinguish:
眼镜 yǎnjìng (regular eyeglasses),
墨镜 mòjìng (sunglasses),
护目镜 hùmùjìng (safety goggles).
风镜 specifically suggests outdoor wind-and-sand protection — motorcycles, deserts, ski slopes.