BU3521UK vs Evo VL30 Cordless Vacuums

Torn between BU3521UK and Evo VL30 for your next cordless vacuum?

We examine the BU3521UK – a battery-power vacuum by Shark, comparing runtime, dust tank, and costs, with – Evo VL30 by Tower, analysing real-world vacuuming performance.

By assessing these vacuums – the BU3521UK and Evo VL30 from SHARK and TOWER, you get the best floorcare machine.

Best Cordless Vacuum Pick

SHARK BU3521UK vs TOWER Evo VL30 – key Specifications

BU3521UK and Evo VL30 Cordless Battery Run Time

SHARK Stick cordless vacuums, like the BU3521UK, provides lightweight portability without mains cables. Evo VL30 Stick is also cordlessly powered by a TOWER rechargeable battery.

The Tower Evo VL30 has a battery supply runtime of 40 minutes of cleaning, compared to the Shark BU3521UK which has 40 minutes life.

• SHARK BU3521UK Runtime: 40 mins continuous vacuuming
• TOWER Evo VL30 Runtime: 40 mins continuous vacuuming

Charging times between the BU3521UK and Evo VL30 varies – check manual.

Cordless Vacuum Dust Tank Capacity

Both Shark BU3521UK and Tower Evo VL30 are bagless, storing dust, hairs, dirt, and debris inside a sealed 0.42 litre and 0.8 litre tank, respectively. The Evo VL30 by TOWER holds up to 0.8 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
• Evo VL30 onboard dirt/dust tank size: 0.8L

Floor Cleaning Types

Shark’s BU3521UK and Tower’s Evo VL30 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 Evo VL30 and BU3521UK can’t vacuum liquids. For this, a TOWER or SHARK ‘wet and dry’ vacuum is needed.

Most Shark and Tower battery powered vacuums include accessories. Check BU3521UK or Evo VL30 manual for specifications and attachments.

Vacuum Filtration

The Evo VL30 and SHARK BU3521UK include effective filters to capture dust, dander, pollen, hairs, and fibres.

SHARK and TOWER use HEPA, foam, or cloth, filters. BU3521UK and Evo VL30 maintain suction and clean exhaust air.

TOWER and SHARK Reviews

Combined feedback from 128 reviewers shows the BU3521UK with a rating of 4.4/5 stars, and the Evo VL30 vacuum gains a 4.2/5 average from 31 reviews, showing comparable reliability results.

Brand	Model	Runtime	Weight	Tank	Best Price
SHARK	BU3521UK	40 M	2.7	0.42L	£349.99
TOWER	Evo VL30	40 M	2.8	0.8L	£79.99