A porta potty is a self-contained, freestanding restroom unit designed for temporary use anywhere plumbing isn't available, including construction sites, weddings, festivals, parties, and disaster relief efforts. With no hookups or site prep required, these units hold waste in a sealed tank, control odor chemically, and get serviced by rental companies to stay clean and functional. This guide breaks down how they work, the different types available (from standard units to ADA-compliant models and restroom trailers), common use cases, and what to consider, like guest count and rental costs, when planning to rent one for your next event or job site.