WORLD CLASS CARPET CLEANER The remarkably engineered RX Hepa Carpet Cleaner is equipped with non marking rubber wheels that are uniquely designed to allow the user to easily maneuver the machine in any direction. Two position operation allows the user to lift the base for threshold or use the machine in a horizontal position for the lowest possible clearance APPROVED BY HOSPITALS The five-stage filtration system includes, at the final stage, an electrostatic microfilter '3M Filtrete' commonly used in hospitals for biological check. You are guaranteed that all the exhaust air (carbon dust) coming out from the motor brushes is purified, obtaining a superior exhaust air quality