To improve visibility while driving in fog, what should you use?

Using the lower headlight beam is the best choice for improving visibility while driving in fog. This is because low beams produce a shorter and more focused light pattern that helps illuminate the road immediately in front of the vehicle without causing excessive glare. In foggy conditions, high beam headlights tend to reflect off the moisture in the air, creating a wall of light that can further obscure visibility. Fog lights, while designed for use in foggy conditions, are most effective when used in combination with lower beams but are not a substitute for them. Regular headlights can be helpful, but they may not be as effective in fog compared to the lower beam setting. Thus, utilizing the lower headlight beam ensures that drivers maintain better visibility and safety when navigating through fog.