Hassle-Free Auto Empty System
The BU3521UK features Shark’s advanced Auto Empty System that empties dust and debris into a base after each clean, eliminating the need to manually empty the dustbin after every use and keeping hands clean and your home dust-free.
Powerful Cordless Suction with Long Runtime
Powered by Shark’s high-performance cordless motor, this vacuum offers powerful suction across carpets and hard floors, with up to 60 minutes of runtime*—perfect for whole-home cleaning without interruptions.
Anti Hair Wrap Technology for Tangle-Free Cleaning
Equipped with Shark’s signature Anti Hair Wrap Technology, the brush roll actively separates and removes hair as you clean—ideal for homes with pets or long-haired family members.
Description
Take the effort out of everyday cleaning with the Shark Cordless Vacuum with Auto Empty System – BU3521UK. Designed for convenience, this cordless powerhouse features a hands-free Auto Empty base, powerful suction, and up to 60 minutes of runtime* for floor-to-ceiling versatility. With Anti Hair Wrap Technology and multi-surface performance, it delivers a deep, tangle-free clean every time. Say goodbye to constant bin-emptying and hello to effortless, hygienic vacuuming—ideal for busy homes and pet owners.
*Runtime based on standard mode with non-motorised tool.
Technical Data
| Feature | Specification |
|---|---|
| Model Number | BU3521UK |
| Type | Cordless Stick Vacuum with Auto Empty Base |
| Power Source | Rechargeable Lithium-ion Battery |
| Runtime | Up to 60 minutes* |
| Charging Time | Approx. 3.5 hours |
| Dust Capacity (Handheld Unit) | Approx. 0.7 litres |
| Dust Capacity (Auto Empty Base) | Up to 30 days’ worth of dust and debris** |
| Weight (Vacuum Only) | Approx. 4.1 kg |
| Floor Types | Suitable for carpets, hard floors, tiles, wood |
| Filtration | HEPA filtration with Anti-Allergen Complete |