On the downside, it has few of the features that are slowly becoming absolute essentials on a cordless vacuum. While I could live with the clunky emptying (and actually, I’m slightly taken by it), I would find it hard to introduce a vacuum into my household that doesn’t comb hair tangles out of its floor head.

That is a trait we are much more used to seeing with air-powered ‘turbo’ brushes and it can make cleaning rather frustrating. The floorhead’s cleaning power is great, but the brush bar slowed or stopped far too often on carpet for our liking. Switching to normal power mode stops that happening – but the clean is then fairly poor. I've been reviewing vacuum cleaners since I joined Real Homes in 2020 as the Appliances Editor. Before this time I had gone through several vacuum cleaners in the various homes I've lived in. I can usually tell whether or not a vacuum cleaner is going to be a good one by looking at the spec, or as it's unboxed. At 65dB, the BCS122GB competes with some of the market’s best low-noise and ‘silence’ mains cleaners. You won’t disturb the neighbours even during midnight cleaning sorties. The Bosch Unlimited 7 that I reviewed arrived with two batteries and two chargers. Although the battery arrived with some juice, I opted to fully charge it before giving it a run for its money. I didn't have to wait long – within one hour all three battery indicator lights were illuminated.The extension wand has a hinge about two-thirds of the way up that can be released to allow it to bend up to 90 degrees. This is particularly useful for getting under low furniture. The long, bendy crevice tool is also handy for getting into narrow spaces behind wardrobes and radiators. It’s not unique to Bosch, but there aren’t many models that come with one of these as standard. BOSCH มีอยู่หลายรุ่น แต่ตัวใหม่ล่าสุดที่พึ่งเข้าไทยคือ Unlimited 7 รุ่นมาตรฐาน รหัส BBS711W เป็นตัวที่ปูเป้ได้มาลองใช้ครับ (ส่วนอีกรุ่นจะเป็น Unlimited 7 ProAnimal รหัส BBS711ANM จะมีอุปกรณ์เสริมมาให้มากกว่า และหัวแปรงมอเตอร์จะเป็นรุ่นที่ดึงขนสัตว์ออกจากพื้นผิว เฟอร์นิเจอร์ได้มากกว่ารุ่นปกติ ทั้งสองรุ่นผลิตในโรงงานของ BOSCH เองที่เยอรมัน

The two batteries supplied with this model are remarkably compact and light for their capacity. For comparison, a lot of budget cordless cleaners come with 1.5Ah or 2Ah batteries that are larger and heavier. The solid capacity promises a whole lot of run time from the cleaner, with the ability to swap out batteries and charge while you are cleaning. On normal power mode with no tools, this cleaner barely registered 65dB of noise output. That is much quieter than most of its premium cordless competitors and the sound is an inoffensive drone – as opposed to the dentist-drill sound of some. On top of the body is the Turbo switch. That might not be as corny as Tesla’s ‘Insane’ power mode, but it seriously ramps up the BCS122GB’s suction. Runtime takes a nosedive accordingly.As popularised by the eponymous Dyson, this Bosch is also bagless but it only has a capacity of 0.4l so you’ll have to empty it out pretty frequently. It’s smaller than the Dyson V8’s 0.54l bin, although on balance there’s not enough in it to make a significant difference to the way you’ll use the vacuum. BOSCH Unlimited 7 เป็นเครื่องดูดฝุ่นไร้สายที่ออกแบบมาได้ดีทีเดียว โดยเฉพาะสำหรับการดูดพื้นซึ่งเป็นการใช้งานหลักของเครื่องดูดฝุ่น ที่ทั้งสะดวกในการที่ใช้ทำความสะอาดได้ทั้งพื้นแข็งและพื้นพรม แถมยังปรับระดับแรงดูดให้เหมาะกับพื้นผิวได้อัตโนมัติ การเปลี่ยนหัวแปรงและการวางเครื่องพักชั่วคราวก็ทำได้ง่าย ท่อที่สามารถงอได้ 90 องศา ทำให้เราแทบไม่ต้องก้มตัวลงไปที่พื้นเพื่อทำความสะอาดหรือเพื่อเปลี่ยนหัวแปรงเลย

We first saw this tech on some of Bosch’s mains-powered cleaners and it worked well for both filtration and reducing the filter cleaning chore. It’s not washable though, so we do wonder how its performance will fair over time when particles get permanently lodged in its fibres. The Bosch Unlimited 7 has been awarded the Design Award 2022, and it has some convenient functions which I found really useful during my time using it. And in case you do use both of them up, there are two chargers, too – one for the batteries and one that plugs directly into the Unlimited 7 device to charge the battery within the unit. The dustbin capacity is a compact 0.3 litres. I found this to be a little too compact, as I had to empty it a few times to complete a clean of our three-bedroom house. This will be less of an issue if you have a smaller area to clean, of course, and it's more than enough for vacuuming the car.Unusually, the BCS122GB has a single filter unit, rather than the multifarious foam, paper, mesh and pleated filters of its rivals. But thanks to Bosch’s very sleek filter design that doesn’t diminish the filtration, and the company claims that a hygienic 99.9% of particles will be captured. We have little doubt Bosch has specified a lower torque brush bar motor to save power and increase runtime but – like the ineffective normal power mode – it’s a false economy. We would happily trade a couple of minutes of Turbo runtime for a brushbar that cleaned consistently without slowing or stopping. It’s not an issue we have experienced with Bosch’s premium competitors either. That alone lets down an otherwise excellent carpet-cleaning performance. BOSCH Unlimited 7 นั้นถือว่าดูแลง่ายทีเดียว เมื่อเปิดออกมาจะมีปุ่มที่ให้เราหมุ่นเพื่อช่วยกระเทาะฟิลเตอร์กรองฝุ่นเพื่อช่วยให้ฝุ่นที่เกาะอยู่หล่นออกมา โดยฟิลเตอร์นี้ไม่ต้องล้างน้ำ ถ้าสกปรกมาก็หมุนเยอะ ๆ แล้วก็เคาะ ๆ กับถังขยะเอาฝุ่นออกมากหน่อย ซึ่งเราชอบนะ เนื่องจากฟิลเตอร์กรองฝุ่นละเอียดที่แนะนำให้ล้างทำความสะอาดด้วยน้ำ ถ้าแห้งช้าไป แห้งไม่ทัน จะมีกลิ่นอับง่ายมาก The head’s superb articulation allows it to turn into all but the tightest of turning steps, although it remains too large to flip up and do the verticals. For those, we used the triangular upholstery tool, which was effective if not swift.

LED ด้านหน้าหัวแปรงยังช่วยส่องสว่าง อำนวยความสะดวกการทำความสะอาดซอกมืด ๆ ใต้เตียง ใต้โซฟา หรือใต้ชั้นวางของ

A decent enough cordless vacuum cleaner but rivals offer more for the same price

Yet the 18 minutes runtime (nine minutes x 2) on the Turbo mode gives you ample high-power floor cleaning to rival any current mains-powered cleaner. We used the Unlimited BCs122GB on stairs with both the tube attached and with the floorhead connected directly to the cleaner body. Both worked well and, if you have straight steps, the tube gives extra reach and you can support it with your other hand. For more complex stairs, shortening up the system and using the floorhead directly works well. The bin itself takes a little getting used to as it releases from the cleaner by tipping forward and away. Emptying is as simple as pulling out the filter unit and tipping out the contents.