---
product_id: 650621113
title: "Clean & Empty Cordless Vacuum Cleaner with Auto-Empty System, Lightweight Anti Hair Wrap Vacuum with Pet & Crevice Tools, 40 Mins Run-Time, Charging Dock, LED Headlights, White/Blue, BU3521UK"
brand: "shark"
price: "€ 725.30"
currency: EUR
in_stock: true
reviews_count: 8
category: "Shark"
url: https://www.desertcart.be/products/650621113-clean-and-empty-cordless-vacuum-cleaner-with-auto-empty-system
store_origin: BE
region: Belgium
---

# 40 mins runtime Anti-hair wrap brush-roll Auto-empty base holds 1.3L dirt Clean & Empty Cordless Vacuum Cleaner with Auto-Empty System, Lightweight Anti Hair Wrap Vacuum with Pet & Crevice Tools, 40 Mins Run-Time, Charging Dock, LED Headlights, White/Blue, BU3521UK

**Brand:** shark
**Price:** € 725.30
**Availability:** ✅ In Stock

## Summary

> 🦈 Clean smarter, not harder — the future of cordless vacuuming is here!

## Quick Answers

- **What is this?** Clean & Empty Cordless Vacuum Cleaner with Auto-Empty System, Lightweight Anti Hair Wrap Vacuum with Pet & Crevice Tools, 40 Mins Run-Time, Charging Dock, LED Headlights, White/Blue, BU3521UK by shark
- **How much does it cost?** € 725.30 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/650621113-clean-and-empty-cordless-vacuum-cleaner-with-auto-empty-system)

## Best For

- shark enthusiasts

## Why This Product

- Trusted shark brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Spotlight on Clean:** Built-in LED headlights illuminate hidden dust in dark corners and under furniture.
- • **Pet Hair’s Worst Enemy:** Self-cleaning anti-hair wrap brush-roll adapts seamlessly between carpets and hard floors.
- • **Effortless Clean, Zero Fuss:** Auto-empty base seals away dust & allergens for up to 30 days—forget manual emptying forever.
- • **Always Charged, Always Ready:** Charging dock keeps your vacuum powered up with up to 40 minutes of cordless runtime.
- • **Light as Air, Strong as Shark:** 30% lighter than previous models for easy maneuvering without sacrificing powerful suction.

## Overview

The Shark Clean & Empty Cordless Vacuum BU3521UK combines a powerful 0.41 HP motor with a lightweight 2.7kg design and a 1.3L auto-empty base that traps 99.9% of dust and allergens. Featuring a self-cleaning anti-hair wrap brush-roll, LED headlights, and up to 40 minutes of runtime, it’s engineered for effortless, hygienic cleaning on all floor types. Perfect for busy professionals seeking a sleek, low-maintenance vacuum that’s always ready to tackle pet hair and everyday messes.

## Description

Powerful cordless vacuum with auto-empty base trapping 99.9% dust/allergens. Lightweight, anti-hair wrap brush, up to 40 mins runtime for convenient cleaning.

Review: Compact, great suction, but noisy. - So far so good, though I will update if required. The good bits: Brilliant suction. Nice and compact if you have a smaller home. Nice and lightweight to manoeuvre. Performs very well on hard floors. Self emptying dust receptacle is great, especially if you don’t want to handle dead spiders! Bright headlights for darker areas. Great for animal hair. Not so good bits: The self emptying dock doesn’t always discharge everything, sometimes it needs a little shake. Not quite as good on carpeted areas, but still performs better than most. Charging lead isn’t that long. Run time not quite as long as it states, but still adequate. Emptying dock is noisy, not so good if you’re in a flat or terraced. Even though we’re detached, our neighbour claims to have heard it when we used it late one evening. Overall, bought this to replace a cordless Miele, and it (so far) has performed very well. Having recently moved to a larger house, it’s perfect for moving from room to room without the faff of plugging and unplugging. Not all of our rooms are used regularly, so just need a light going over most days. Husband has been doing some major building renovations, for which we’re using the Henry, but this is just perfect for everyday mess from the kids. Recommended if you can get it at the sale price.
Review: It does what it’s supposed to do. - Yes it is a great hoover. It’s good because it actually empties itself when you are finished and put it back on the stand. it has really good suction . Only two attachments with it . Has great power .

## Features

- AUTOMATICALLY EMPTIES ITSELF: Completely sealed bagless base holds dirt and debris for up to 30 days, so you can forget about emptying for weeks at a time. No more manual emptying after every clean
- SEALS AWAY FINE DUST: Traps up to 99.9% of dust & allergens inside the base (Based on IEC standard 62885-2 CI. 5.14 at 0.3 to 10 microns.)
- LIGHTWEIGHT: 30% lighter (vs IZ300UK.) The Anti Hair Wrap self-cleaning brush-roll automatically adjusts to clean carpets & hard floors
- ALWAYS READY: Charging while stored on the dock, it’s always ready for the next clean. Up to 40 mins run-time (In ECO power mode, non-motorised tool). Detachable handheld vacuum
- INCLUDES: Shark Clean & Empty Cordless Vacuum Cleaner, Auto-Empty Charging Dock (UK plug), Pet Multi-Tool, Crevice Tool. Capacity: 1.3L (Base), 0.42L (Vacuum). Weight: 2.7kg (Vacuum). Colour: White/Blue
- 5-YEAR GUARANTEE: 2 years for batteries. Upon registration with Shark. UK & ROI only

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D5MMK4BR |
| Battery Description | Lithium-Ion |
| Battery Life | 40 minutes |
| Best Sellers Rank | 13,867 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 41 in Stick Vacuums & Electric Brooms |
| Brand Name | Shark |
| Capacity | 1.3 litres |
| Colour | White/Blue |
| Control Method | App |
| Controller Type | Push Button |
| Customer Reviews | 4.4 4.4 out of 5 stars (254) |
| Filter Type | HEPA Filter |
| Form Factor | Stick |
| Included Components | Charging Dock, Crevice Tool, Pet Tool |
| Indoor Outdoor Usage | Indoor |
| Is Product Cordless | Yes |
| Item Dimensions L x W x H | 35.3L x 26.4W x 109.2H centimetres |
| Item Type Name | Clean and Empty Cordless Vacuum Cleaner with Auto-Empty System, Lightweight Anti Hair Wrap Vacuum with Pet, Crevice Tools, 40 Mins Run-Time, Charging Dock, LED Headlights |
| Item Weight | 2.7 Kilograms |
| Manufacture Year | 2024 |
| Manufacturer | Shark |
| Model Name | Pico |
| Model Number | BU3521UK |
| Motor Horsepower | 0.41 Horsepower |
| Noise Level | 80 Decibels |
| Number of Handles | 1 |
| Number of Items | 1 |
| Number of Power Levels | 2 |
| Other Special Features of the Product | Auto-Empty Base, Anti-Allergen Complete Seal, Anti Hair Wrap, Auto-Adjusts to Floor Type, Charging Dock, Up to 40 Mins run-time |
| Portable | Yes |
| Power Source | Battery Powered |
| Recommended Uses For Product | Carpets, Hard Floors, Upholstery, Car Interiors, Pet Hair Removal |
| Runtime | 40 minutes |
| Style Name | Auto Empty Dock |
| Surface Recommendation | Carpets, Hard Floors, Upholstory, in Car, All Floors |
| UPC | 622356297622 |
| Voltage | 240 Volts |
| Wattage | 240 watts |

## Product Details

- **Brand:** Shark
- **Filter type:** HEPA Filter
- **Power source:** Battery Powered
- **Surface recommendation:** Carpets, Hard Floors, Upholstory, in Car, All Floors

## Images

![Clean & Empty Cordless Vacuum Cleaner with Auto-Empty System, Lightweight Anti Hair Wrap Vacuum with Pet & Crevice Tools, 40 Mins Run-Time, Charging Dock, LED Headlights, White/Blue, BU3521UK - Image 1](https://m.media-amazon.com/images/I/61EbYyosGFL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Compact, great suction, but noisy.
*by �***� on 27 May 2025*

So far so good, though I will update if required. The good bits: Brilliant suction. Nice and compact if you have a smaller home. Nice and lightweight to manoeuvre. Performs very well on hard floors. Self emptying dust receptacle is great, especially if you don’t want to handle dead spiders! Bright headlights for darker areas. Great for animal hair. Not so good bits: The self emptying dock doesn’t always discharge everything, sometimes it needs a little shake. Not quite as good on carpeted areas, but still performs better than most. Charging lead isn’t that long. Run time not quite as long as it states, but still adequate. Emptying dock is noisy, not so good if you’re in a flat or terraced. Even though we’re detached, our neighbour claims to have heard it when we used it late one evening. Overall, bought this to replace a cordless Miele, and it (so far) has performed very well. Having recently moved to a larger house, it’s perfect for moving from room to room without the faff of plugging and unplugging. Not all of our rooms are used regularly, so just need a light going over most days. Husband has been doing some major building renovations, for which we’re using the Henry, but this is just perfect for everyday mess from the kids. Recommended if you can get it at the sale price.

### ⭐⭐⭐⭐⭐ It does what it’s supposed to do.
*by B***A on 1 March 2026*

Yes it is a great hoover. It’s good because it actually empties itself when you are finished and put it back on the stand. it has really good suction . Only two attachments with it . Has great power .

### ⭐⭐⭐⭐ Not cheap but worth the money
*by S***E on 20 February 2026*

The vacuum itself is light and easy to carry around and can’t be shortened to a handheld version with two alternative heads. I’ve used it on wooden floors and rugs and does a decent job. The empty function has shaved a lot of time and hassle. It sometimes struggles if the device is full but you can empty it a little manually. The bigger box is relatively easy to empty but does let out a lot of dust when you first open it. On thicker rugs you’ll need to go over areas multiple times but otherwise it only needs a one over. If you’re hoovering on carpets on rugs, you may need to apply extra pressure to ensure it’s on the right setting to pick up dirt. It works wonders on the cat hair that’s everywhere!

## Frequently Bought Together

- Shark Clean & Empty Cordless Vacuum Cleaner with Auto-Empty System, Lightweight Anti Hair Wrap Vacuum with Pet & Crevice Tools, 40 Mins Run-Time, Charging Dock, LED Headlights, White/Blue, BU3521UK
- Shark Car Detail Kit [3726FFJ200UK] Official Accessory Compatible with Shark Cordless Vacuum Cleaners, Black , 1 litres, For IZ201/IZ251

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.be/products/650621113-clean-and-empty-cordless-vacuum-cleaner-with-auto-empty-system](https://www.desertcart.be/products/650621113-clean-and-empty-cordless-vacuum-cleaner-with-auto-empty-system)

---

*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-04-30*