Torn between BU3521UK and HomePro Detect Pet-Design CLSV-HPTC for your next cordless vacuum?

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We examine the BU3521UK – a battery-power vacuum by Shark, comparing runtime, dust tank, and costs, with – HomePro Detect Pet-Design CLSV-HPTC by Vax, analysing real-world vacuuming performance.
By assessing these vacuums – the BU3521UK and HomePro Detect Pet-Design CLSV-HPTC from SHARK and VAX, you get the best floorcare machine.
Best Cordless Vacuum Pick
Best Buy: Shark PowerPro Cordless Stick Vacuum
Best cordless vacuum – Shark PowerPro – beating BU3521UK and HomePro Detect Pet-Design CLSV-HPTC on performance and value
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Get DealSHARK BU3521UK vs VAX HomePro Detect Pet-Design CLSV-HPTC – key Specifications
SHARK BU3521UK Specs

- Product Brand: SHARK
- Cordless Vacuum Model: BU3521UK
- Type of Vacuum: Stick
- Battery Life: 40 Minutes
- Dirt Tank Capacity: 0.42L
- Weight: 2.7KG
- Colour: Navy Blue & White
- RRP: £349.99
VAX HomePro Detect Pet-Design CLSV-HPTC Specs

- Product Brand: VAX
- Cordless Vacuum Model: HomePro Detect Pet-Design CLSV-HPTC
- Type of Vacuum: Stick
- Battery Life: 45 Minutes
- Dirt Tank Capacity: 0.7L
- Weight: 3.5KG
- Colour: Graphite & Blue
- RRP: £369.00
BU3521UK and HomePro Detect Pet-Design CLSV-HPTC Cordless Battery Run Time
SHARK Stick cordless vacuums, like the BU3521UK, provides lightweight portability without mains cables. HomePro Detect Pet-Design CLSV-HPTC Stick is also cordlessly powered by a VAX rechargeable battery.
The Vax HomePro Detect Pet-Design CLSV-HPTC has a battery supply runtime of 45 minutes of cleaning, compared to the Shark BU3521UK which has 40 minutes life.
- SHARK BU3521UK Runtime: 40 mins continuous vacuuming
- VAX HomePro Detect Pet-Design CLSV-HPTC Runtime: 45 mins continuous vacuuming
Charging times between the BU3521UK and HomePro Detect Pet-Design CLSV-HPTC varies – check manual.
Cordless Vacuum Dust Tank Capacity
Both Shark BU3521UK and Vax HomePro Detect Pet-Design CLSV-HPTC are bagless, storing dust, hairs, dirt, and debris inside a sealed 0.42 litre and 0.7 litre tank, respectively. The HomePro Detect Pet-Design CLSV-HPTC by VAX holds up to 0.7 Litre of compressed dirty particles. The BU3521UK by SHARK has a capable capacity of 0.42 litre for manual disposable.
- BU3521UK onboard dirt/dust tank size: 0.42L
- HomePro Detect Pet-Design CLSV-HPTC onboard dirt/dust tank size: 0.7L
Floor Cleaning Types
Shark’s BU3521UK and Vax’s HomePro Detect Pet-Design CLSV-HPTC brush heads are effective on every surface – carpets & deep-pile rugs, hard floors (laminate, wood, tiles), vinyl, even upholstery, and stairs.
Their only limitation is the HomePro Detect Pet-Design CLSV-HPTC and BU3521UK can’t vacuum liquids. For this, a VAX or SHARK ‘wet and dry’ vacuum is needed.
Most Shark and Vax battery powered vacuums include accessories. Check BU3521UK or HomePro Detect Pet-Design CLSV-HPTC manual for specifications and attachments.
Vacuum Filtration
The HomePro Detect Pet-Design CLSV-HPTC and SHARK BU3521UK include effective filters to capture dust, dander, pollen, hairs, and fibres.
SHARK and VAX use HEPA, foam, or cloth, filters. BU3521UK and HomePro Detect Pet-Design CLSV-HPTC maintain suction and clean exhaust air.
VAX and SHARK Reviews
Combined feedback from 128 reviewers shows the BU3521UK with a rating of 4.4/5 stars, and the HomePro Detect Pet-Design CLSV-HPTC vacuum gains a 4.2/5 average from 313 reviews, showing comparable reliability results.
| Brand | Model | Runtime | Weight | Tank | Best Price |
| SHARK | BU3521UK | 40 M | 2.7 | 0.42L | £349.99 |
| VAX | HomePro Detect Pet-Design CLSV-HPTC | 45 M | 3.5 | 0.7L | £369.00 |
Best Buy: Shark PowerPro Cordless Stick Vacuum
Best cordless vacuum – Shark PowerPro – beating BU3521UK and HomePro Detect Pet-Design CLSV-HPTC on performance and value
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