Necessary for public and private activities, it aims to free the environments from colonies of pests. Cockroaches and bed bugs are the most common types of pest. We use monitoring systems to limit the problem and subsequently implement the right strategy to eradicate the problem. A special treatment with combination of cryodisinfestation, dry saturated steam, ecological powders, and, finally, ozone is targeted at hotels and every accommodation facility with large numbers of users, and enables using the sanitized spaces in the shortest time possible while maintaining excellent treatment results.