Shark Clean & Empty Cordless Stick Vacuum, 40-Min Runtime, Blue, BU3523

The Shark Clean & Empty Cordless Stick Vacuum (BU3523) combines lightweight stick cleaning with an automated base station to simplify daily floor care. Designed 30% lighter than the Shark Vertex Pro, it offers simple maneuverability across carpets, rugs, and bare floors without dragging a heavy machine around. It works well for homes needing quick daily pickups and flexible above-floor reach.

The standout feature is the self-emptying charging dock equipped with a 1.3-liter base container. When docked, the vacuum automatically clears its dust bin into the base while recharging for the next session. Built-in Quiet Mode lets you charge silently and delay auto-emptying if you clean late at night. Floor cleaning is managed by intelligent brushroll technology that senses surfaces and optimizes speed automatically, while integrated LED headlights bring hidden dust into clear view.

For specialized cleaning, the stick detaches to form a lightweight handheld vacuum. It comes with a Motorized Hand Tool, a FurFins Tool, and an 8-inch Duster Crevice Tool to clear pet hair and dust from upholstery, furniture, and stairs. The PowerFins self-cleaning brushroll handles stubborn hair across hard surfaces and carpets while actively resisting hair wrap. Inside, a sealed HEPA filtration system traps over 99.97% of dust particles down to 0.3 microns.

Buyers should consider a few design trade-offs before purchasing. The listed 40-minute maximum runtime applies specifically to ECO power mode paired with non-motorized attachments, so using motorized tools or higher suction settings will reduce run time. The auto-empty dock also requires permanent floor space near an outlet for charging and debris storage.

Verdict: This cordless vacuum is ideal for pet owners and busy households wanting hassle-free daily upkeep without manual dust cup emptying. Its automatic floor adjustments, self-cleaning brushroll, and sealed HEPA filtration deliver convenient whole-home cleaning in a lightweight package.

• Model: BU3523
• Color: Blue
• Base Dock Capacity: 1.3 liters
• Maximum Runtime: Up to 40 minutes (ECO mode with non-motorized tool)
• Filtration: HEPA filter with Anti-Allergen Complete Seal (99.97% down to 0.3 microns)
• Included Accessories: Auto-Empty charging dock, FurFins tool, 8-inch duster crevice tool

A great fit if you:

• Want a vacuum that empties itself automatically into a 1.3-liter base dock after every clean.
• Have pets and need a self-cleaning brushroll to prevent hair wrap on carpets and furniture.
• Clean multiple floor types and prefer intelligent sensors that adjust brushroll speed automatically.

Consider something else if you:

• Need more than 40 minutes of continuous cleaning using full power or motorized floor heads.
• Do not have dedicated floor space to accommodate an auto-empty charging dock.

How does the automatic emptying dock work?
When you return the vacuum to the dock, it automatically transfers collected dirt into the 1.3-liter base container while simultaneously charging the battery. You can also turn on Quiet Mode to charge silently and postpone auto-emptying.

How long does the battery last on a single charge?
The vacuum provides up to 40 minutes of cordless runtime when used in ECO power mode with a non-motorized tool.

Does the brushroll get tangled with pet hair?
No, it uses a PowerFins self-cleaning brushroll designed to prevent hair wrap while picking up pet hair across hard floors and carpets. It also includes a Motorized Hand Tool for pet hair on furniture and stairs.

What accessories come included with this vacuum?
The package includes the cordless stick vacuum, Auto-Empty charging dock, FurFins Tool, and an 8-inch Duster Crevice Tool.