Shark BU3521UK Clean & Empty Cordless Vacuum Cleaner & Auto-Empty System - 40 Minutes Run Time - White

Overview
The Shark BU3521UK Clean & Empty Cordless Vacuum Cleaner offers an innovative Auto-Empty base that stores dirt and debris for up to 30 days, helping you clean without constant interruptions. This cordless device charges easily on its base, ensuring it’s always ready to perform. Its brush roll automatically adjusts to suit carpets and hard floors, providing effective cleaning for all surfaces. The built-in LED headlights improve visibility, revealing dust and dirt in darker areas for a thorough clean every time.
Perfect for households needing a convenient and efficient cleaning tool, this vacuum features a detachable handheld unit and two versatile accessories for tackling floors, upholstery, and hard-to-reach spots. The Anti-Allergen Complete Seal captures 99.9% of dust and allergens, making it an excellent choice for those sensitive to allergens. The cordless design and simple dirt disposal system enhance ease of use, allowing seamless cleaning with less effort and maintenance.
With practical features focused on delivering consistent performance and improved hygiene, the Shark BU3521UK is a reliable solution for keeping your home spotless. Its combination of smart design and powerful cleaning capabilities makes it a valuable addition to any household looking to maintain a fresh, healthy environment with minimal hassle.
General
| Additional Information | After every clean, Shark Clean & Empty automatically deposits the dirt into a completely sealed base that holds dirt and debris for up to 30 days – so you can forget about emptying for weeks at a time. Anti-Allergen Complete Seal captures and traps up to 99.9%* of dust, allergens and irritants inside the base (*Based on IEC standard 62885-2 CI. 5.14 at 0.3 to 10 microns.) LED headlights on the floorhead illuminate hidden debris around your home. Simply detach the handheld vacuum to clean anywhere with the included Crevice and Pet Tools. |
| Features | Auto-Empty Base – Holds dirt for 30 days Brush Roll Adapts – Cleans carpets and hard floors Handheld Unit Included – Tackles upholstery and tight spaces Anti-Allergen Seal – Captures 99.9% of dust and allergens |
| Product Type | Vacuum |
| Barcode/EAN | 622356297622 |
Product Type
| Product Category Group | SDA |
Brown Goods & SDA Features
| Dust Capacity | 0.42 L |
| Filter Type | Anti-Allergen Complete Seal in AED only |
| Floor Type | Carpet Hard Floors |
| Maximum Battery Recharge Time | 5 hours |
| Maximum Battery Run Time | 40 min |
| Pet Hair Cleaning | Yes |
Design Elements
| Colour | White |
| Colour Group | White |
| Material | Plastic |
Dimensions & Weight
| Depth | 26.5 cm |
| Height | 76 cm |
| Shipping Depth | 28 cm |
| Shipping Height | 110 cm |
| Shipping Weight | 9.91 kg |
| Shipping Width | 38 cm |
| Weight | 5.39 kg |
| Width | 37 cm |
Accessories
| Accessories | Mini Surface Tool Crevice tool 20cm |
Additional Information
| Warranty/Guarantee | 1 Year Guarantee plus additional 4 Year Warranty (*Registration Required) |
| Warranty Redemption Information | *Retain Receipt and Register the guarantee within 28 days of purchase at www.sharkclean.co.uk/register-guarantee |
Programmes & Functions
| Number of Power Levels | 3 |
Connectivity
| Cordless | Yes |
Key Features
- Auto-Empty Base – Holds dirt for 30 days
- Brush Roll Adapts – Cleans carpets and hard floors
- Handheld Unit Included – Tackles upholstery and tight spaces
- Anti-Allergen Seal – Captures 99.9% of dust and allergens
Product Dimensions (H x W x D)
| Brand | Shark |
|---|---|
| Condition | New |
| Vacuum Type | Cordless |
| Product Information Sheet | 📄 View Product Data Sheet |
| Energy Label | ⚡ View Energy Label |


