The Porta PlumeSafe 604 is a small, economical system designed to meet the needs of most medical specialties. It is light enough to easily move from room to room or be placed on a table. Features: - Extremely lightweight & portable - Easy to operate - RFID technology automatically tracks filter life so you don?t have to! (patent pending) - Economical - Provides 0.1 to 0.2 micron filtration @ 99.999% efficiency - LED Display of filter life and suction power - Simple filter changes - Quiet