This safety lesson explains how HVAC technicians can protect themselves from pests when working in crawl spaces. It covers the risks posed by insects, rodents, spiders, and snakes, and how to avoid bites, stings, or disease. The video highlights the importance of inspecting the space before entering, using PPE, and watching for droppings, nests, or signs of infestations. By staying alert and following safety practices, workers can reduce the chance of injury or exposure while on the job.