Miele Boost CX1 Canister Vacuum: A Powerful Option with Limitations

The Miele Boost CX1 canister vacuum is known for its robust airflow and suction capabilities typical of Miele's vacuum range. However, it doesn't perform as effectively as expected due to its limited non-motorized floorhead, which may scratch sensitive hard floors and has difficulty navigating carpets.

Pros and Cons of the Miele Boost CX1

• +

  Exceptional suction power

• +

  Adjustable suction power for carpets

• +

  Includes useful attachments and an extendable hose

• -

  Not suitable for delicate hard flooring

• -

  Insufficient suction on carpets

• -

  Lacks a brushroll

• -

  No HEPA filter included (one can be purchased separately)

You can trust our assessments.

Our team dedicates hours to testing and comparing the latest products to help you make informed choices. Learn more about our testing methods.

Canister vacuums are popular among professional cleaners due to their versatility and strong cleaning capabilities on various surfaces. While they require more storage space, they are invaluable for larger homes with multiple types of flooring and messes.

Miele is a leading brand in the canister vacuum market, and the Boost CX1 is one of their mid-range models featuring vortex technology, a comprehensive set of attachments, and an attractive design.

But how well does it clean? I evaluated 18 top vacuum cleaners and put the Miele Boost CX1 to the test in our testing facility, at a local pet shelter, and in my home to assess its performance.

Miele Boost CX1: Specifications

Type	Canister
Bagged/bagless?	Bagless
Dustbin	1 liter
Cord length	21 feet
Cleaning radius	32 feet
Noise level	78 decibels
Weight	18 pounds

Miele Boost CX1: Unboxing and Setup

All components of the Miele Boost CX1 easily snap together, allowing for quick assembly in just a minute or two. The instructions are straightforward, featuring clear visual steps.

In addition to the main floorhead, the Boost CX1 includes a crevice tool, upholstery tool, and dusting brush.

Miele Boost CX1: Design and Features

The Boost CX1 utilizes vortex technology to create powerful airflow for effective suction. It offers four adjustable suction modes controlled by a dial:

• Curtains and fabrics
• Cut pile carpets, rugs, and runners
• Loop pile carpets and rugs
• Hard flooring and heavily soiled carpets, as well as upholstery and mattresses when using the upholstery nozzle

This model comes with a single floorhead that features a foot switch for transitioning between cleaning carpets and hard floors, allowing the brush to either protrude or retract. While it does not utilize a traditional brushroll, it has a thin strip of bristles to help remove dirt.

The user manual claims it can clean carpets, rugs, and 'sturdy' hard flooring. It specifically states that it can tackle 'even hard surfaces that are not prone to scratching, as well as flooring with gaps or deep crevices when using the brush in protruding mode.'

However, I noticed that the floorhead has too many sharp edges, making it unsuitable for delicate hardwood floors. It's disappointing, especially considering the price, as you'd expect a vacuum with more versatility.

While additional floorheads for Miele canister vacuums are available for purchase, they can be pricey. For instance, the popular TurboTeQ floorhead retails for $142.

Additionally, this model does not come equipped with a HEPA filter, instead utilizing Miele's Hygiene AirClean SF-HY 60 filter. This filter is not designed for a lifetime and requires replacement roughly once a year. However, you can opt for a Miele HEPA filter at an additional cost of $10. The manual includes detailed guidelines on when and how to replace the filter.

The extendable tube nearly doubles in length, making it easier to vacuum expansive areas or reach under furniture. There's also a practical air inlet valve on the handle that lets air escape while vacuuming, preventing the floorhead from sticking to the floor.

Miele Boost CX1: Flour and Sugar Tests

I tested one cup of flour and sugar at our testing facility on both carpet and hard flooring to evaluate the vacuum's performance. This is a useful visual test as flour and sugar simulate dust and dead skin.

Despite lacking a brushroll, the Boost CX1 excelled on hard flooring. It effectively removed all flour from linoleum after a couple of passes, and I found it worked best when pulling it backward, as this minimized the flour being pushed around. On wooden surfaces, however, it pushed some flour into the cracks, which required using the brush to remove completely. I would be cautious about potential damage to hardwood floors with this method.

On carpets, the powerful suction was evident as the floorhead clung tightly to the surface. I opened the air inlet valve to enhance maneuverability, and it managed to clear the mess in about five passes on the third suction mode.

Miele Boost CX1: Pantry Tests

To assess how well the vacuum performs on larger debris often found in households, I tested one cup of cereal and lentils.

Unfortunately, this is where the vacuum faced challenges. The narrow design of the floorhead made it difficult to capture larger pieces, and the absence of a brushroll meant that debris wasn't crushed down to fit. On both carpets and hard floors, I removed the floorhead and used just the intake nozzle, which worked effectively. It demonstrated the vacuum's strong suction as the larger pieces were easily drawn in. Although it's simple to detach the floorhead, it can become tedious if you need to do this every time you clean.

Miele Boost CX1: Pet Hair Tests

I evaluated the Miele Boost CX1 at a local pet shelter, Bristol ARC, focusing on its ability to tackle pet hair and the messes associated with high foot traffic.

As expected, a vacuum without a brushroll is not ideal for removing pet hair. A brushroll with anti-tangle features is essential for effectively lifting hair from the floor, and the Boost CX1 lacks this capability.

I also observed that the rigid wheels on the floorhead caused it to bounce on thick carpets and moved roughly on low-pile carpets. This is not an ideal reflection of the suction strength needed for effective carpet cleaning, as a good vacuum should be able to extract dirt embedded deep in the fibers.

That said, it managed to clean up a considerable amount of hair from a low-pile carpet even without a motorized brush. Some stubborn hairs remained, but the floor was mostly clean. I noted similar performance on a thick rug, but I was concerned about how many fine particles like dust and dander were left behind, which is important for allergy sufferers, as the floorhead struggled to maintain a good seal on the floor.

Miele Boost CX1: Attachments

I tested the attachments of the Miele Boost CX1 in our facility, at the pet shelter, and in my home to evaluate their effectiveness.

The attachments showcase the Strength of the Boost CX1. Miele vacuums are known for their powerful airflow, and despite the limitations of the floorhead, they perform exceptionally well. The crevice tool effectively picked up powders from tight spaces where other vacuums struggled, and the upholstery tool excelled at removing fur from furniture at the pet shelter.

Miele Boost CX1: Cleaning and Maintenance

The Boost CX1 comes with a 1-liter dustbin that's easy to detach and empty. With just a flip of a switch, the dust is released, and even after multiple uses for hair, dust, powders, and dirt, nothing got stuck inside. A small brush attached to the dustbin facilitates the removal of any residue.

The manual provides clear instructions on how to clean the filter and guidelines for when and how to replace it as needed.

Miele Boost CX1: Final Thoughts

The Miele Boost CX1 has the potential to be an outstanding vacuum cleaner with its powerful suction, adjustable components, and four modes for versatile cleaning. However, its effectiveness is limited by the floorhead's design, which is not well-suited for delicate hardwood floors and lacks a brushroll for carpets.

While it performs well on smooth, sturdy surfaces, particularly with attachments, I recommend considering a different floorhead if you choose this canister vacuum.

---

Check out our guide to the best upright vacuums for similar cleaning performance in more compact designs.