The Model CRV clean room vacuum is especially designed to be an intricate part of your facility cleaning procedures. It is ideal for use in Class 1 through Class 100, 000 clean rooms, gowning areas and air showers in all pharmaceutical labs, medical devices manufactures, biological labs and computer rooms. The absolute filtration system includes a dual layer disposable paper bag, non-woven cloth filter and a standard ULPA. (Ultra Low Penetration Air) filter. A powerful 1. 2 hp motor supplies ample suction at a constant airflow, and with a sound rating of only 65 dBa.