Shark Shark Clean & Empty Cordless Stick Vacuum BU3521
Rating
Product Overview
The Shark Clean & Empty Cordless Stick Vacuum BU3521 offers lightweight maneuverability and an auto-empty system for convenient cleaning. It features a HEPA filter, a multi-surface brushroll that auto-adjusts to different floor types, and up to 40 minutes of runtime. The vacuum transforms into a handheld for versatile cleaning and includes a pet multi-tool and crevice tool. The auto-empty base reduces dust exposure, making it suitable for allergy sufferers.
Product Specifications
Size & Weight
Features
A function that allows the vacuum to stand upright on its own without needing to be leaned against a wall or placed on the floor. Convenient when you need to pause cleaning to move furniture or answer the phone. Helps prevent the vacuum from falling over and getting damaged.
This vacuum does not have a self-standing function. It requires the charging dock for upright storage. This may be less convenient for quick pauses during cleaning, as it needs to be placed back on the base.
A function that automatically removes hair and debris tangled around the brushroll. Reduces the need for manual cleaning of the brushroll, saving time and effort. Helps maintain optimal cleaning performance.
The self-cleaning brushroll technology prevents hair wrap, reducing the need for manual cleaning. This feature maintains optimal cleaning performance and saves time and effort, ensuring consistent suction and dirt removal.
Equipped with LED lights on the vacuum head to illuminate the cleaning path. Makes it easier to see dirt and debris in dark areas, such as under furniture and in corners. Ensures thorough cleaning even in dimly lit spaces.
This vacuum does not have an LED headlight function. This may make it more difficult to see dirt and debris in dimly lit areas, such as under furniture and in corners, potentially affecting cleaning thoroughness.
A function that allows the stick vacuum to be easily converted into a handheld vacuum. Useful for cleaning furniture, car interiors, and other hard-to-reach areas. Provides versatility for various cleaning tasks.
The convertible handheld function allows the stick vacuum to be easily transformed into a handheld unit. This is useful for cleaning furniture, car interiors, and other hard-to-reach areas, adding to its versatility for various cleaning tasks around the home.
A function that offers different power settings to suit various cleaning needs. Allows you to switch to a higher power mode for stubborn dirt and a lower power mode for delicate surfaces and extended run time. Provides flexibility and control over cleaning performance.
Multiple power modes offer flexibility to adjust suction for different cleaning needs. Higher power for stubborn dirt and lower power for delicate surfaces and extended runtime, ensuring efficient cleaning and adapting to various floor types and cleaning scenarios.
A function that allows for quick and easy emptying of the dustbin without the need to touch the dirt. Simplifies the disposal of collected debris, reducing mess and contact with allergens. Makes maintenance more convenient.
The auto-empty base provides a quick and hygienic way to dispose of collected debris without touching the dirt. This simplifies maintenance and reduces contact with allergens, making it particularly beneficial for allergy sufferers and ensuring a cleaner emptying process.
SHOPSTAFF Rating Score
The Shark BU3521 is a lightweight cordless vacuum with an auto-empty base, offering convenience for everyday cleaning. It's suitable for homes with pets and various floor types. However, the battery life may be limiting for larger homes, and some users have noted concerns about its durability.
Brand & Manufacturer Details
Key Highlights
- Lightweight design
- Auto-empty base
- HEPA filtration
- Multi-surface brushroll
Considerations
- Battery life may be limited in higher suction modes
- Check for clogs regularly to maintain suction
- Handle joints with care due to potential fragility
Recommended For
- Pet owners
- Apartment dwellers
- Individuals with allergies
Not Recommended For
- Those needing extended runtime for large homes
- Users requiring heavy-duty cleaning for industrial spaces
- none in particular
Suitable For
- Daily cleaning of pet hair
- Quick cleanups on hard floors and carpets
- Cleaning under furniture and in tight spaces
Not Suitable For
- Cleaning large industrial spaces
- Vacuuming up large spills of liquid
- none in particular
Frequently Asked Questions (FAQ)
Q.How does the auto-empty feature work and is it hygienic?
Q.Is this vacuum suitable for homes with pets?
Q.How does the vacuum perform on different floor types?
Q.What is the battery life like, and how long does it take to charge?
Q.Is the vacuum easy to maneuver and carry around the house?
Q.How effective is the filtration system for allergens?
Q.What are the potential drawbacks of this vacuum?
SHOPSTAFF Rating Ranking
The Dyson V11 Origin offers cordless convenience, powerful suction, and versatile cleaning for the whole home.
| Weight | 2.99 kg | Dust Collection Capacity | 0.75 L |
| Battery Voltage | 25.2 V | Operating Time (Max) | 60 min |
| Charging Time | - hours | Suction Power | - W |
| Type | Cordless | Filter Type | HEPA |
| Noise Level | 70 dB | Stand Type | Yes |
Dyson V8 Plus cordless vacuum with powerful suction, lightweight design, and versatile attachments for whole-home cleaning.
| Weight | 2.6 kg | Dust Collection Capacity | 0.54 L |
| Battery Voltage | 220 V | Operating Time (Max) | 40 min |
| Charging Time | - hours | Suction Power | 1400 W |
| Type | Cordless | Filter Type | HEPA |
| Noise Level | 70 dB | Stand Type | Yes |
Cordless stick vacuum with 48KPa suction, 65 min runtime, self-standing design, LED touch screen, and HEPA filter.
| Weight | 2.86 kg | Dust Collection Capacity | 1.8 L |
| Battery Voltage | 29.6 V | Operating Time (Max) | 65 min |
| Charging Time | 4 hours | Suction Power | 580 W |
| Type | Cordless | Filter Type | HEPA |
| Noise Level | 58 dB | Stand Type | Yes |
Lightweight, cordless Dyson V8 for versatile cleaning. Up to 40 minutes of fade-free power. Includes multiple tools.
| Weight | 2.54 kg | Dust Collection Capacity | 0.53 L |
| Battery Voltage | 21.6 V | Operating Time (Max) | 40 min |
| Charging Time | 5 hours | Suction Power | 500 W |
| Type | Cordless | Filter Type | HEPA |
| Noise Level | 80 dB | Stand Type | Yes |
450W, 45000Pa cordless vacuum with 60-min runtime, anti-tangle brush, LED lights, self-standing design, lightweight.
| Weight | 2.0 kg | Dust Collection Capacity | 1 L |
| Battery Voltage | 22.2 V | Operating Time (Max) | 60 min |
| Charging Time | 4-5 hours | Suction Power | 450 W |
| Type | Cordless | Filter Type | HEPA |
| Noise Level | 45 dB | Stand Type | Yes |
