1 year manufacturer warranty
2 year promotional warranty
Registration by Customer Required
More details
Further details can be found on our delivery information page.
Need help or technical advice on a product or service? Get in touch, we’re always happy to help.
Call us on : 01603 599 599
Meet the cordless vacuum that empties itself, so you don’t have to.
Forget about emptying for weeks at a time. Every time you finish cleaning, Shark Clean & Empty automatically deposits the dirt into a completely sealed base unit that holds dirt and debris for up to 30 days. No more manual emptying after every clean – simply return the vacuum to the dock and let the hands-free Auto-Empty System empty the cordless vacuum’s dust-cup into a large bagless base.
Seals away dust & debris. Inside the base, fine dust particles are sealed away after every clean – perfect for homes with pets or allergies. Anti-Allergen Complete Seal captures and traps up to 99.9% of dust, allergens and irritants inside the base, keeping them out of the air you breathe.
Holds up to 30 days of dirt & debris
Forget trips to the bin every time you vacuum. After every clean, this Auto-Empty vacuum automatically deposits dirt and debris into a completely sealed base unit – so you can forget about emptying for up to 30 days.
Traps up to 99.9% of dust & allergens
Inside the base, Anti-Allergen Complete Seal captures and traps up to 99.9% of dust, allergens and irritants, keeping them out of the air you breathe. Perfect for homes with pets and anyone with allergies.
Always ready, always charged
Charging while stored on the dock, your cordless vacuum is always charged, always empty, and always ready for the next clean.
Lightweight & manoeuvrable
This 30% lighter vacuum delivers powerful cleaning throughout your home, with a detachable handheld vacuum and a self-cleaning brush-roll that auto-adjusts to deep clean all floor types.
HyperVelocity accelerated suction power delivers powerful cleaning on all floor types.
Charging while stored on the dock, your cordless vacuum is always charged, always empty, and always ready for the next clean. Enjoy up to 40 mins of run-time per charge.
This agile cordless stick vacuum is 30% lighter, so you can enjoy powerful cleaning throughout your home.
Auto-adjusts for all floor types. Perfect for all floor types, the brush-roll automatically optimises speed for deep carpet cleaning, and gives you continuous cleaning contact on hard floors. Anti Hair Wrap Technology actively removes hair from the self-cleaning brush-roll as you vacuum, helping to keep it free of tangles.
Clean anywhere. Instantly detach the handheld vacuum to easily clean using the included Crevice and Pet Tools. Easily remove dust, dirt and pet hair from sofas, furniture, the car and more, and extend your reach up high with the wand.
Designed to make cleaning easier. Quiet Mode provides the option to dock and charge silently, and leave the emptying for later. Powerful LED lights on the floorhead illuminate hidden debris around your home. Easily view remaining battery life and cleaning mode on the LED display.
For your peace of mind, Shark offers a free 5-year guarantee (upon registration with Shark, 2 years for batteries, UK & ROI only).
The Shark BU3521UK Clean & Empty Cordless Vacuum Cleaner is designed with an Auto-Empty base that stores dirt and debris for up to 30 days, eliminating the need for frequent emptying.
This cordless vacuum charges effortlessly while stored on the base, providing continuous cleaning power. The brush-roll adjusts automatically to efficiently clean both carpets and hard floors. Additionally, the vacuum’s Anti-Allergen Complete Seal captures and contains up to 99.9% of dust and allergens.
Equipped with LED headlights for improved visibility, this vacuum offers versatile cleaning with detachable handheld and a range of accessories for various cleaning needs, helping to keep your home spotless.
| 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 Automatically adjusting brush roll 2 tools included |
| Product Type | Vacuum |
| Product Category Group | SDA |
| 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 |
| Colour | White |
| Colour Group | White |
| Material | Plastic |
| 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 | Mini Surface Tool Crevice tool 20cm |
| Warranty/Guarantee | 2 Year Guarantee |
| Warranty Redemption Information | 2-year guarantee (upon registration with Shark, UK & ROI only) |
| Number of Power Levels | 3 |
| Cordless | Yes |
We offer FREE delivery on orders over £100. Deliveries of small items are made by DHL or Royal Mail.
Large appliances are delivered by our own delivery teams, installation services can also be selected during the checkout process. Unfortunately, we are not able to deliver some large appliances outside of Norfolk and North Suffolk at the moment; you will be informed of this during the order process if you enter a postcode outside of our delivery zone.
Some manufacturers offer direct delivery of large appliances; you will be informed if this is available during the order process.
We aim to dispatch within 2 workings days of the order being placed. You will receive an email confirming your delivery date.
Delivery Information ›We offer installation services on large home appliances, you can select additional services at checkout.
We offer the following installation services:
Televisions & Associated Devices - from £45.00
Washing Machines - from £30.00
Washer Dryers - from £30.00
Tumble Dryers - from £15.00
Dishwashers - from £30.00
Refrigeration - from £15.00
Ovens & Cookers - from £90.00
All installations are carried out by our own experienced engineers. Our installation services are only available in Norfolk and North Suffolk, you will be asked for your postcode during the checkout process to see if these services are available to you.
Upon receipt of your order, we will call you to arrange a convenient time for your delivery and installation to take place.
For full details follow the link below.
Home Appliance Installation ›
