---
product_id: 645679795
title: "Shark Clean & Empty – Lightweight Cordless Vacuum Cleaner with HEPA Filter, Portable, Rechargeable, Auto-Empty System, Stick Vacuum for Pet Hair, Carpets & Hardfloor, White, BU3521ME, 5 Years Warranty"
brand: "shark"
price: "€ 813.75"
currency: EUR
in_stock: false
reviews_count: 8
category: "Shark"
url: https://www.desertcart.fi/products/645679795-shark-clean-and-empty-lightweight-cordless-vacuum-cleaner-with-hepa
store_origin: FI
region: Finland
---

# 40 min runtime Auto-empty system HEPA filtration 99.97% Shark Clean & Empty – Lightweight Cordless Vacuum Cleaner with HEPA Filter, Portable, Rechargeable, Auto-Empty System, Stick Vacuum for Pet Hair, Carpets & Hardfloor, White, BU3521ME, 5 Years Warranty

**Brand:** shark
**Price:** € 813.75
**Availability:** ❌ Out of Stock

## Summary

> 🧼 Clean smarter, live fresher — the future of effortless home care!

## Quick Answers

- **What is this?** Shark Clean & Empty – Lightweight Cordless Vacuum Cleaner with HEPA Filter, Portable, Rechargeable, Auto-Empty System, Stick Vacuum for Pet Hair, Carpets & Hardfloor, White, BU3521ME, 5 Years Warranty by shark
- **How much does it cost?** € 813.75 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/645679795-shark-clean-and-empty-lightweight-cordless-vacuum-cleaner-with-hepa)

## 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

- • **Breathe Easy with HEPA:** Captures 99.97% of allergens and dust, ensuring a healthier home environment.
- • **Smart Floor Adaptation:** Auto-adjusting brushroll optimizes cleaning on carpets and hard floors for spotless results.
- • **Pet Hair’s Worst Enemy:** Specialized tools and strong suction make pet hair vanish in seconds—no more fur drama.
- • **Effortless Clean, Always Ready:** Auto-empty & charging dock keeps your vacuum charged and dust-free without lifting a finger.
- • **Light as Air, Powerful as Ever:** 30% lighter design with full-sized Shark suction power for seamless maneuverability.

## Overview

The Shark Clean & Empty BU3521ME is a lightweight, cordless stick vacuum featuring a revolutionary auto-empty system and HEPA filtration that traps 99.97% of dust and allergens. With up to 40 minutes of runtime, smart floor-adaptive brushroll, and specialized pet hair tools, it delivers powerful, hands-free cleaning for carpets and hard floors. Backed by a 5-year warranty, it’s designed for busy professionals who demand efficiency and a healthier home environment.

## Description

Buy Shark Clean & Empty – Lightweight Cordless Vacuum Cleaner with HEPA Filter, Portable, Rechargeable, Auto-Empty System, Stick Vacuum for Pet Hair, Carpets & Hardfloor, White, BU3521ME, 5 Years Warranty online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase.

Review: 10/10 - Absolutely amazing vacuum, light weight in comparison to traditional vacuum. Slow to charge, but charge lasts quite awhile. Daily use in small one bedroom apartment, charge lasts about two weeks. Great attachments, easy to disassemble for cleaning purposes, great suction.
Review: Great performance! - Love it! I bought second already for my second apartment. Works great! It's my 3rd Shark Vacuum cleaner, and eac new vacuum cleaner is better, better and better. Light, great suction power, removes my animals fur easily. If you find it on sale, buy it! You won't regret

## Features

- ALWAYS READY, ALWAYS CHARGED: Automatically empties and charges while docked, so it's ready for the next clean. No more manual emptying after every clean.
- LIGHTWEIGHT MANEUVERABILITY: The redesigned cordless vacuum is 30% lighter*, with the power and performance of a full-sized** Shark cordless vacuum (*vs. IZ662H.) (**Based on ASTMF608, vs. IZ662H)
- REMOVABLE HANDVAC: Transforms into handheld vacuum for lightweight above floor cleaning
- UP TO 40 MINUTES OF RUNTIME*: Deep clean your whole home with up to 40 minutes* of runtime. (*In ECO mode, measured at the hand vacuum.)
- 500X LESS DUST EXPOSURE** VS. TRADITIONAL EMPTYING: Fine dust and debris get sealed away after every clean, keeping them out of the air you breathe-- no more dust clouds. (**Based on third-party plume testing while emptying vs. manual empty.)
- HEPA FILTRATION AND ANTI-ALLERGEN COMPLETE SEAL: Captures and traps over 99.97%* of dust and allergens. (*Based on ASTMF1977, down to .3 microns.)
- AUTO-ADJUSTS TO FLOOR TYPES: Auto-adjusting & MultiSurface brushroll, optimizes brushroll speed for deep carpet cleaning and directly engages hard floors.
- QUIET MODE: Provides the option to dock & charge silently, and leave the emptying for later.
- LED HEADLIGHTS: Powerful LED lights on the nozzle reveal hidden debris around your home.
- WHAT'S INCLUDED: 8" Duster Crevice Tool, Pet-Multi tool, Removable DC-Jack Battery Pack (spare battery packs and charging cords sold separately)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D15YWYMD |
| Amperage | 25 Amps |
| Battery Charge Time | 5 Hours |
| Battery Description | Lithium-Ion |
| Battery Life | 40 minutes |
| Best Sellers Rank | #317 in Kitchen ( See Top 100 in Kitchen ) #6 in Stick Vacuums & Electric Brooms |
| Brand | Shark |
| Brand Name | Shark |
| Capacity | 1.3 Liters |
| Color | White |
| Control Method | Touch |
| Controller Type | Push Button |
| Country of Publication | China |
| Customer Reviews | 4.2 out of 5 stars 7,403 Reviews |
| Filter Type | HEPA Filter |
| Filter type | HEPA Filter |
| Finish Types | Polished |
| Form Factor | Stick |
| Global Trade Identification Number | 10622356647462 |
| Included Components | Charging Dock |
| Indoor Outdoor Usage | Indoor |
| Is Product Cordless | Yes |
| Item Dimensions L x W x H | 37.3L x 26.5W x 110.5H centimeters |
| Item Type Name | Clean & Empty – Lightweight Cordless Vacuum Cleaner with HEPA Filter, Powerful Suction, Portable, Rechargeable, Auto-Empty System, Stick Vacuum for Pet Hair, Carpets & Hardfloor, White BU3521 |
| Item Weight | 11.24 Pounds |
| Manufacture Year | 2024 |
| Manufacturer | SharkNinja |
| Manufacturer Warranty Description | 5 Years Warranty |
| Model Name | Clean & Empty |
| Model Number | BU3521 |
| Motor Horsepower | 0.32 horsepower |
| Number of Handles | 1 |
| Number of Items | 1 |
| Number of Power Levels | 3 |
| Other Special Features of the Product | Cordless, HEPA, High Precision Sensors, Lightweight, Spotless Cleaning |
| Portable | Yes |
| Power Source | Battery Powered |
| Power source | Battery Powered |
| Recommended Uses For Product | carpeted floors, hardwood floors, pet hair removal |
| Runtime | 40 minutes |
| Special features | Cordless, HEPA, High Precision Sensors, Lightweight, Spotless Cleaning |
| Style Name | Auto-Empty Stick Cordless Vacuum Cleaner |
| Surface Recommendation | All floors |
| Surface recommendation | All floors |
| UPC | 622356647465 622356309783 |
| Unit Count | 1 Count |
| Voltage | 120 Volts |
| Wattage | 180 watts |

## Product Details

- **Brand:** Shark
- **Filter type:** HEPA Filter
- **Power source:** Battery Powered
- **Special features:** Cordless, HEPA, High Precision Sensors, Lightweight, Spotless Cleaning
- **Surface recommendation:** All floors

## Images

![Shark Clean & Empty – Lightweight Cordless Vacuum Cleaner with HEPA Filter, Portable, Rechargeable, Auto-Empty System, Stick Vacuum for Pet Hair, Carpets & Hardfloor, White, BU3521ME, 5 Years Warranty - Image 1](https://m.media-amazon.com/images/I/41fTuLonkML.jpg)
![Shark Clean & Empty – Lightweight Cordless Vacuum Cleaner with HEPA Filter, Portable, Rechargeable, Auto-Empty System, Stick Vacuum for Pet Hair, Carpets & Hardfloor, White, BU3521ME, 5 Years Warranty - Image 2](https://m.media-amazon.com/images/I/71lhbB4HHrL.jpg)
![Shark Clean & Empty – Lightweight Cordless Vacuum Cleaner with HEPA Filter, Portable, Rechargeable, Auto-Empty System, Stick Vacuum for Pet Hair, Carpets & Hardfloor, White, BU3521ME, 5 Years Warranty - Image 3](https://m.media-amazon.com/images/I/8110ZYVMAEL.jpg)
![Shark Clean & Empty – Lightweight Cordless Vacuum Cleaner with HEPA Filter, Portable, Rechargeable, Auto-Empty System, Stick Vacuum for Pet Hair, Carpets & Hardfloor, White, BU3521ME, 5 Years Warranty - Image 4](https://m.media-amazon.com/images/I/81DiDQpNEpL.jpg)
![Shark Clean & Empty – Lightweight Cordless Vacuum Cleaner with HEPA Filter, Portable, Rechargeable, Auto-Empty System, Stick Vacuum for Pet Hair, Carpets & Hardfloor, White, BU3521ME, 5 Years Warranty - Image 5](https://m.media-amazon.com/images/I/81Mh6qgAx1L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 10/10
*by K***D on 25 November 2025*

Absolutely amazing vacuum, light weight in comparison to traditional vacuum. Slow to charge, but charge lasts quite awhile. Daily use in small one bedroom apartment, charge lasts about two weeks. Great attachments, easy to disassemble for cleaning purposes, great suction.

### ⭐⭐⭐⭐⭐ Great performance!
*by A***Y on 21 January 2026*

Love it! I bought second already for my second apartment. Works great! It's my 3rd Shark Vacuum cleaner, and eac new vacuum cleaner is better, better and better. Light, great suction power, removes my animals fur easily. If you find it on sale, buy it! You won't regret

### ⭐⭐⭐⭐ good quality
*by T***H on 6 October 2025*

The Vacuum cleaners did good job on daily cleaning work. For my flat which is only 369 sqft, it can completely the work in one-time full charge. However, if I want to do extra cleaning, then I need to charge it again. All about this vacuum is good, except the battery is kind insufficient. But if you live alone or having a small apartment then this is the most affordable and valuable vacuum cleaner I recommend.

## Frequently Bought Together

- Shark Clean & Empty Cordless Stick Vacuum – Lightweight Cordless Vacuum with HEPA Filter, Portable, Rechargeable, Auto-Empty System, Stick Vacuum for Pet Hair, Carpets & Hardfloor, White, BU3521
- 4 Pack IW3511 BU3521 HEPA Filter Replacement Part For Shark IW3511 IW1111 IW1120 Detect Pro Lightweight Cordless Stick Vacuum Cleaner. For Shark BU3523 Clean Empty Auto-Empty System Portable Handheld.

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**Shop now:** [https://www.desertcart.fi/products/645679795-shark-clean-and-empty-lightweight-cordless-vacuum-cleaner-with-hepa](https://www.desertcart.fi/products/645679795-shark-clean-and-empty-lightweight-cordless-vacuum-cleaner-with-hepa)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-01-31*