How can you increase visibility when driving in fog?

Using low beam headlights is the correct approach for increasing visibility when driving in fog. Fog can create a reflective surface that can cause light from high beams to scatter, making it more difficult to see the road and surrounding vehicles. Low beam headlights are designed to provide adequate illumination without causing excessive glare in foggy conditions. They are aimed downward, which helps to light up the road immediately in front of the vehicle without reflecting off the fog particles.

Driving with high beam headlights in fog, while thought to provide more light, actually worsens visibility. All vehicle lights can help to make a vehicle more visible to others on the road, but they do not necessarily improve the driver's ability to see clearly through fog. Driving with windows down does not improve visibility and can even pose safety risks by allowing outside noise and elements to distract the driver. Therefore, using low beam headlights is the safest and most effective way to navigate through fog.