Abstract: Apparatus and associated methods relate to an autonomous modular bathroom facility configured to detect a bathroom user exited the bathroom, determine no user remains in the bathroom, lock the door, and automatically clean the bathroom. In an illustrative example, automatic cleaning may be triggered in response to detecting a user unlocked and exited the bathroom. The bathroom facility may lock the door and initiate the cleaning process based on determining the bathroom is not occupied. For example, some embodiments may determine the bathroom is unoccupied when a user exits the bathroom without another entering, based on bathroom occupancy determined as a function of a sensor. The sensor may include, for example, one or more weight, movement, heat, or other type sensor. The door may be locked when the bathroom is unoccupied, for example, permitting the bathroom to be safely cleaned.

Abstract: A transportable body (10) suitable for spraying vehicles comprising a main body having a spray compartment (12) with a floor, a ceiling, opposed side walls (16, 18), and a vehicle entry door (20) an upper air inlet plenum for introducing air through the ceiling and an air exhaust in the floor wherein the air inlet and air exhaust are configured to provide a downdraft ventilation system the opposed side walls of the spray compartment are outwardly moveable from a transport position in which the main body can be loaded onto a transporter and a spray position a utility compartment (14) housing an air inlet handling unit (24) with an air inlet fan for supplying air to the air inlet and an air exhaust handling unit (26) with an air exhaust fan for drawing exhaust air from the air exhaust in the floor, the compartments being arranged end to end and a wall separating the compartments.