Cold Fogging Vs Smoke Fogging Is a 2025 Pest Control Technology Comparison, Pest control has entered a new era in 2025, with modern fogging technologies offering more precise, eco-friendly, and cost-effective solutions. Two methods remain at the forefront Cold Fogging (ULV) and Smoke Fogging (Thermal Smoke Treatment). While both can control pests effectively, they differ in operation, chemical compatibility, safety, and application environments.