The Portable 5 Gallon Timed Entryway Foam Sanitizer automatically projects sanitizing foam onto floors of 3' wide employee walk doors to prevent cross-contamination. The all-stainless steel cart allows moving the system between sanitation zones, and the front swivel casters include wheel locks to stabilize the unit during use. This venturi injection system uses city water pressure (35 - 125 PSI) to draw chemical concentrate into the water stream to create an accurately diluted solution. Compressed air is injected into the solution to create rich, clinging foam that greatly increases chemical volume and coverage ability. The Spreader™ Nozzle produces a course, wide fan pattern. The system timer is user-programmable to meet the needs of any facility.