We really like to get a hands-on experience with the products which we feature across Ideal Home, in line with our testing protocol. It means that we get tounderstand more about whatyouare getting for your money. Overall, this is a superb performance, surpassing the abilities of the more expensive Dyson models, including the V15 Detect and the V11 Outsize. Shark has included its DuoClean head, which has a soft roller for hard floors and a brush for carpets. For this model, Shark has included its PowerFins tech, which adds fins to the roller to really get into carpet fibres and agitate dirt. It’s also got Anti Hair Wrap tech, which really works to prevent hair from wrapping around the rollers. I put the Shark IZ320UKT through my raw performance tests, measuring suction power in airwatts (AW), which uses a combination of airflow and suction. On Eco power, the vacuum runs at a basic 37.33AW, moving to 61.40AW on standard, which is about average for cordless cleaners. On Boost mode, the vacuum manages a huge 199.79AW; few cordless vacuum cleaners are this powerful, bar the Dyson V15 Detect, which manages an even higher 280.93AW.

Cordless vacuum cleaners are growing in popularity due to their lightweight design and ease-of-use. We have plenty of styles from a range of top brands, so you’re sure to find the right model for your home. There's a suite of onboard tools which can be used with this vac too, Molly's favourite being the Anti Hair Wrap Power Tool which is great for upholstery and smaller jobs.There’s no on-body storage for these tools, although Shark does throw in an accessory bag for you to keep everything in. Even if you prefer to use a smaller, handheld vacuum cleaner, the IZ251UKTDB has got you covered. We found that when equipped with the motorised pet tool it did an extremely thorough job and was easy to use on steps, even those that are awkwardly shaped. Cordless upright vacuum cleaners can have a run time anywhere between 12 minutes and 75 minutes. The majority are around the 20 to 40 minute mark. Switching between carpet and had floors is very easy thanks to the DuoClean brushrolls, which switch over with the touch of a button. It's also possible to go between three power levels, although we found the lowest level perfectly strong enough for the majority of tasks. The IZ300UK has three battery power levels, and while it claims to have a battery life of up to 60 minutes, this is on eco mode and when using a non-motorised tool such as the crevice tool. Expect a lower battery life for day-to-day use. If this is an issue for you and you want that hour-long window, opt for the Shark IZ320UK which is the exact same model but with another battery, so you can switch out your first battery when it's finished.

Pull the floor head off and you can easily clean close up or even around the ceiling, with the Shark IZ320UKT nicely balanced. Our Ecommerce Writer Molly oversees vacuum and cleaning content at Ideal Home. She tested out the Shark CZ500UKT DuoClean & Anti Hair Wrap Bagless Cylinder Pet Vacuum for two months before reviewing it. It is her essential vacuum for deep cleaning, and she thinks the intuitive controls are excellent for everyday use. FAQs How to choose the best Shark vacuum

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I measured the Shark IZ320UKT at 71.2dB (Eco), 75.4dB (Standard) and 76.8dB (Boost). That’s about average for a cordless vacuum cleaner with this much power.

The relatively new innovation to Shark's portfolio is Flexology which allows the wand to go from straight to angled, is a feature which we highly rate. It means that you can get your vac under the beds and various items of furniture that are raised up on legs. What we found, however, is that the floorhead wasn’t as easy to direct accurately as is the case when it’s used with the rigid wand. Like many of Shark's corded and cordless models, the IZ300UK is fitted with a flexible cleaning tube called Flexology. This means the vacuum conveniently slots underneath coffee tables and sofas, helping you clean those hard-to-reach areas. It delivered pretty consistent results on the flooring, leaving carpet – including on the stairs – tiles, and parquet clean. The DuoClean floorhead had a big part to play in this as it can easily transition across the various floor types, on which its twin bristle brushes work their magic. Anti Hair Wrap – a feature designed to stop hair accumulating around the brush roll – had some impressive results, too. This meant that neither human hair nor the hair of small furry housemates lodged itself around the brushes of the floorhead or the motorised pet tool. The Shark IZ201UK Cordless Vacuum Cleaner is one of the best vacuum cleaners for pet hairon the market. It has a 0.7 litre dustbin which, while not the largest, is adequate for cleaning most homes without the need to empty mid-way. We also enjoy how lightweight it is, at just over 4 kg. Shark quotes battery life at up to 60 minutes per battery running on Eco mode without a powered tool. I tested with a powered tool and found that it lasted 61m 28s on Eco power, 33m 58s on Standard and an impressive 17m 58s minutes on Boost. Recharge time is four hours for both batteries.

Keeping the Shark emptied and clean is simple, too, with one button that releases the collection bin and filter unit from the device and a second button to open the trap door on the bottom to empty it. The filters can all be rinsed in running water and, since the vacuum also comes with Shark’s Anti Hair Wrap tech, you don’t need to worry about detangling regularly, either. This hasn’t transferred across to the pet tool, unfortunately, which gathered quite a bit of tangled hair during our testing. The Shark makes a lot of noise, so it's not a good choice if you tend to vacuum while others are asleep or working from home - even if they're on the other side of the house.

Run times vary greatly between different models and types of cordless cleaners. Generally, the more expensive the model, the longer the run time – although there are exceptions! It's somewhat quieter in eco mode, but both the floor head and motor are still notably louder than some other cordless vacuums we've trialled. On the plus side, Shark’s articulated “Flexology” elbow does make cleaning under low furniture very easy indeed, allowing you to stand up and swing the cleaning head underneath your cupboards and sofas from a standing position, without having to get down on your hands and knees. She also loved the portable vacuum cleaner element that is accessible with just the push of a button. This is thanks to Powered Lift-Away which is super handy for using the suite of attachments to refresh upholstery or vacuum skirting boards.

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The screen is also used to show the current power mode (Eco, Standard or Boost) and, if you have the floor head attached, the floor mode (carpet or hard floor).