SHARK BU3521 Clean & Empty Cordless Stick Vacuum

The SHARK BU3521 Clean & Empty Cordless Stick Vacuum automatically empties itself into a sealed dust bin after each cleaning session. Just dock it on the charging base and the system handles the rest. No dust clouds, no dirty hands. The sealed chamber captures debris and keeps fine particles out of your breathing space, delivering up to 500x less dust exposure compared to traditional manual emptying. The auto-adjusting brushroll optimizes speed for deep carpet cleaning and directly engages hard floors without switching heads. LED headlights reveal hidden debris under furniture and in dark corners. The removable handheld component tackles stairs, upholstery, and car interiors. Up to 40 minutes of runtime in ECO mode covers most whole-home cleaning sessions. HEPA filtration and Anti-Allergen Complete Seal capture over 99.97% of dust and allergens down to 0.3 microns. At 12.3 lb, it's 30% lighter than Shark's Vertex Pro. The quiet mode lets you dock and charge silently, saving the emptying cycle for later. This vacuum works well for busy households and pet owners who want powerful cleaning without the maintenance hassle.