LIDAR typically uses lasers in the so-called eye-safe range (around 1.4 micro meters). This range is precisely around the absorption peak of water so that LIDAR

LIDAR typically uses lasers in the so-called eye-safe range (around 1.4 micro meters). This range is precisely around the absorption peak of water so that LIDAR cannot damage the eyes of pedestrians and other by-standers. By construction, LIDAR sucks in the fog, rain, snow, etc.