Below is a list of Portable Clean Rooms manufacturers from Rancho Santa Margarita, California. Portable clean rooms are movable atmospheric and climate-controlled enclosures used to conduct research, fabrication and other sensitive operations. They are also often modular, and some models can be assembled and disassembled without the assistance of service companies. Portable clean rooms are useful for operations that require a basic measure of control over the environments in which their operations are conducted.