Torn between AIRSTORM1 EW3040 and BU3521UK for your next cordless vacuum?

VS

We examine the AIRSTORM1 EW3040 – a battery-power vacuum by Ewbank, comparing runtime, dust tank, and costs, with – BU3521UK by Shark, analysing real-world vacuuming performance.
By assessing these vacuums – the AIRSTORM1 EW3040 and BU3521UK from EWBANK and SHARK, you get the best floorcare machine.
Best Cordless Vacuum Pick
Best Buy: Shark PowerPro Cordless Stick Vacuum
Best cordless vacuum – Shark PowerPro – beating AIRSTORM1 EW3040 and BU3521UK on performance and value
Limited Offer
Get DealEWBANK AIRSTORM1 EW3040 vs SHARK BU3521UK – key Specifications
EWBANK AIRSTORM1 EW3040 Specs

- Product Brand: EWBANK
- Cordless Vacuum Model: AIRSTORM1 EW3040
- Type of Vacuum: Stick
- Battery Life: 35 Minutes
- Dirt Tank Capacity: 0.6L
- Weight: 2.6KG
- Colour: Red
- RRP: £199.00
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
AIRSTORM1 EW3040 and BU3521UK Cordless Battery Run Time
EWBANK Stick cordless vacuums, like the AIRSTORM1 EW3040, provides lightweight portability without mains cables. BU3521UK Stick is also cordlessly powered by a SHARK rechargeable battery.
The Shark BU3521UK has a battery supply runtime of 40 minutes of cleaning, compared to the Ewbank AIRSTORM1 EW3040 which has 35 minutes life.
- EWBANK AIRSTORM1 EW3040 Runtime: 35 mins continuous vacuuming
- SHARK BU3521UK Runtime: 40 mins continuous vacuuming
Charging times between the AIRSTORM1 EW3040 and BU3521UK varies – check manual.
Cordless Vacuum Dust Tank Capacity
Both Ewbank AIRSTORM1 EW3040 and Shark BU3521UK are bagless, storing dust, hairs, dirt, and debris inside a sealed 0.6 litre and 0.42 litre tank, respectively. The BU3521UK by SHARK holds up to 0.42 Litre of compressed dirty particles. The AIRSTORM1 EW3040 by EWBANK has a capable capacity of 0.6 litre for manual disposable.
- AIRSTORM1 EW3040 onboard dirt/dust tank size: 0.6L
- BU3521UK onboard dirt/dust tank size: 0.42L
Floor Cleaning Types
Ewbank’s AIRSTORM1 EW3040 and Shark’s BU3521UK 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 BU3521UK and AIRSTORM1 EW3040 can’t vacuum liquids. For this, a SHARK or EWBANK ‘wet and dry’ vacuum is needed.
Most Ewbank and Shark battery powered vacuums include accessories. Check AIRSTORM1 EW3040 or BU3521UK manual for specifications and attachments.
Vacuum Filtration
The BU3521UK and EWBANK AIRSTORM1 EW3040 include effective filters to capture dust, dander, pollen, hairs, and fibres.
EWBANK and SHARK use HEPA, foam, or cloth, filters. AIRSTORM1 EW3040 and BU3521UK maintain suction and clean exhaust air.
SHARK and EWBANK Reviews
Combined feedback from 63 reviewers shows the AIRSTORM1 EW3040 with a rating of 4.7/5 stars, and the BU3521UK vacuum gains a 4.4/5 average from 128 reviews, showing comparable reliability results.
| Brand | Model | Runtime | Weight | Tank | Best Price |
| EWBANK | AIRSTORM1 EW3040 | 35 M | 2.6 | 0.6L | £199.00 |
| SHARK | BU3521UK | 40 M | 2.7 | 0.42L | £349.99 |
Best Buy: Shark PowerPro Cordless Stick Vacuum
Best cordless vacuum – Shark PowerPro – beating AIRSTORM1 EW3040 and BU3521UK on performance and value
Limited Offer
Get Deal