Smoke Hazard (T4-6)The Smoke Hazard (T4 6) sign warns motorists of areas where smoke may reduce visibility on the road, helping drivers slow down and stay alert. Ideal for rural roads, controlled burns, wildfire prone areas, and construction zones with potential smoke hazards, this sign provides clear guidance to improve road safety. Manufactured from yellow CL400 Class 1W reflective material, the T4 6 ensures high visibility in all lighting conditions, both day and