A thermal fogger is a device that is used to terminate a pest problem in an outdoor area. ... Both of these fogger types use heat to vaporize the fogging solution to create a dense cloud of fog that penetrates even hard to reach outdoor areas such as shrubbery, grass, tree tops and many other areas. Foggers are often used by consumers as a low cost alternative to professional pest control services. Features & details: Heavy-duty thermal fogger that produces fine, 0.5-50.0 micron droplets. Produc