This document specifies requirements and test methods of mobile dental units concerning a) the properties of mobile dental unit connections to the compressed air supply, water supply, suction supply, and wastewater drain plumbing, b) the materials, design, and construction of the compressed air and water system within the mobile dental unit, c) the quality for incoming water and air, d) the performance of mobile dental unit suction system, and e) the air, water, suction and wastewater properties of mobile dental unit connections to the interfaces to dental handpieces. This document also specifies requirements for instructions for use and technical description. This document is limited to mobile dental units that are not used for oral surgery treatment requiring sterile air and water supplies. Amalgam separators are not included in this document.