Miele Boost CX1 review

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After a boom in cordless vacuums in recent years, a number of new releases have lured us back into the world of corded vacuums.

Why? After using a cordless vacuum cleaner, a corded vacuum cleaner feels extremely powerful. And it’s nice not to have to worry about having to charge it. But it’s also because brands have put development time into wired products to make them more compact and feature-rich.

The Boost CX1 from Miele is a corded vacuum cleaner for smaller homes where space is at a premium but a blast of real power is still required.

design and build

  • Bagless – washable filter
  • 360° maneuverability
  • Four power levels

The Boost CX1 is a compact but powerful cylinder vacuum cleaner. That’s really its unique selling point: According to Miele, its footprint fits in an open magazine (spoiler: it can). But while this makes the canister itself easy to move and store, you still have to contend with the unwieldy wand and hose, which are always a lot harder to find a place for.

The convenient park mode, which allows the wand to tuck into the side of the canister and stand free, provides a neat storage option.

Miele Boost CX1 in parking mode

It’s also highly manoeuvrable, with a front wheel that has 360° adjustment, a tiny rear wheel, and the two large wheels built into the sides of the cleaner. The rod itself is adjustable in length so you can find a height that is comfortable for you.

It is a bagless vacuum cleaner with a large transparent dustbin. It’s easy to remove via the top handle, and when you need to empty it, the entire bottom of the bin flips open, making it easy to remove hair, dust and lint without poking around. The dust filter can also be washed in the sink.

The Miele Boost CX1's trash can has been removed and opened

There is a second filter system above the air outlet at the front of the vacuum cleaner. It takes the form of a removable honeycomb grill. Underneath is a filter cartridge, also removable. It is an effective system where the expelled air smells clean and not dusty.

Air outlet filter system

The controls of the Boost CX1 are simple. There is an on/off switch and a cord retraction button, both of which are large enough to be operated with a foot tap.

In between is a power dial with four settings.

Miele Boost CX1 controls

There is no roller on the vacuum cleaner head. This helps ensure the floor doesn’t get scratched, but if you have a thick rug and want one, you’ll need to opt for the Dog & Cat model, which costs £100/$200 more.

Miele Boost accessories

It comes with a simple set of accessories: a round brush head (great for removing pet hair), a crevice tool and a small wide-mouth nozzle. I’ve never been blown away by Miele vacuum accessories and this set is as easy as it gets.

Nevertheless, there is a well thought-out storage: The set is attached to the connection between the hose and suction wand.

Miele Boost CX1 accessories on the clip

I found it too onerous to clean when they were attached, but it came in handy when it came to parking the vacuum.


  • Better on hard floors than carpet
  • Retractable 6.5m cable
  • Canister weighs 6.07 kg (13.4 lbs)

The Power Control has four recommended settings: the lowest for curtains; the second for velor carpets and rugs; the next for loop rugs and runners; and the highest setting for hard floors. There is a dedicated foot pedal on the vacuum cleaner head to switch between carpets and hard floors.

Still, I felt the second setting was more than adequate for all types of surfaces. At this level, it is also very quiet in operation.

The vacuum is easy to move, but the design of the wheels means it won’t slip or roll away. It’s also next to impossible to tip over.

The fact that the cord is long (6.5m) and retracts at the push of a button also helps alleviate the hassle of having a cord in the first place.

However, vacuuming stairs isn’t the easiest thing to do with the Boost CX1. The canister is square in shape and may be too wide to stand stably on a step (approximately 40 x 27 x 25 cm). But even if it does, you still have to move it up with you as you climb.

The container body weighs 6.07 kg (13.4 lbs), which is a lot to carry when vacuuming. In comparison, the cordless Dyson V15 Detect weighs around 3.3 kg.

Thanks to its telescopic wand, at least you don’t have to lift the bin while vacuuming overhead, even when you’re vacuuming cobwebs from a high ceiling.

There is another problem due to the lack of a roller in the cleaning head. It makes vacuuming carpets quite tiring as the vacuum tends to stick even on the lower settings. Between that and the friction, you have to use quite a bit of force to slide it across the carpet.

While this vacuum should work equally well on carpets and hard floors, the truth is that it’s much better suited to the latter.

price and availability

There are three models available, and color options include white, gray and black: the Boost CX1 (which we’re reviewing here, £269 from Amazon in the UK; $449 from Amazon in the US); the Boost CX1 Hard Floor, which is optimized for use on floors like parquet (£329 from Amazon in the UK; $549 direct from Miele in the US); and the pet-friendly Boost CX1 Cat and Dog (£369 from John Lewis in the UK; $649 from Amazon in the US).

All are cheaper in the UK than in the US.


I’ve always found Miele appliances to be of high quality, but I don’t recommend them as often as I’d like because of the high price involved, which clearly puts them in the luxury category. However, the Boost CX1’s reasonable price means it should have broader appeal.

It is beautifully designed and built to last. However, there are some caveats. This is not a vacuum that will make your life easier if you have acres of carpet or a lot of stairs. But if you mainly have hard floors and are looking for a powerful, compact vacuum cleaner, the Boost CX1 is a good choice.

For more vacuum cleaner options and full reviews of our picks to buy, check out our round-up of the best vacuums we’ve tested.


Miele Boost CX1: technical data

  • Bagless system
  • Wired canister
  • Power: 890W
  • Dust size: 1 liter
  • Cable Length: 6.5m
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