The 3.7 quart, type FJM AirClean dustbag is electrostatically charged to lock in debris. The bag's spring-loaded, self-locking collar helps to ensure that no particles will escape. This vacuum differs from the lower cost S 4582 Neptune model in that it has the electronic suction control, deluxe handle assembly (which takes the strain off your wrist), Active HEPA filter (which captures more particles than the 4212 Neptune's Air Clean filter), triscope wand (which is height adjusable), and combination carpet/smooth floor tool.
