The chemical toilet is a sanitary tool that uses chemical agents to disinfect the vessel, in cases where it is not possible to drain the contents towards the sewer system. Their main use is inside airplanes, trains, campers, caravans and campsites, but also at construction sites, music festivals and homes not connected to the sewer.The chemical agents used, in addition to perfumes, are mainly sodium hydroxide and formaldehyde (methanal), respectively with caustic and disinfectant action. Formaldehyde is sometimes replaced with less irritating agents for the airways of the respiratory system.Usually, the manufacturing companies rely, for distribution, on dealers who take care to follow the whole process of grounding the mobile toilet: from transport, maintenance, cleaning up to collection. In addition to franchisees, there are often small and medium-sized companies with their own bathrooms on the local market.