The Miele Boost CX1 is a high-end bagless canister vacuum from Miele. It's part of Miele's small line-up of bagless canister vacuums and features a 1200W motor with a bagless filter design. The vacuum features HEPA filtration, an auto cord retractor, and four adjustable suction power settings. Depending on the variant you choose, this model can be fitted with floorheads made for particular surface types.
There are several variants that come with different accessories, and some are region-specific. See the available options in the Differences Between Variants section.
Our Verdict
The Miele Boost CX1 is an impressive option for a house. Since it's corded, you don't have to worry about runtime, regardless of the size of your house. This is a very well-built canister vacuum, and despite its bagless design, its HEPA filter works just about perfectly in containing all particles, preventing poor air quality and dust scatter. While the pet hair and fine material pickup performance is great on a variety of surfaces, the low-mounted floorhead tends to push around medium- and large-sized materials. Since this is a bagless vacuum, emptying it in the open releases a cloud of dust that can impact air quality and deposit dust throughout your living space as it settles. Therefore, it's best to empty it outdoors if possible.
HEPA filter seals in nearly every dust particle.
Great build quality.
Easily picks up fine material.
Great pet hair pickup.
Struggles with medium and large debris.
Emptying creates a cloud of dust.
The Miele Boost CX1 is a great option for a small apartment. Its outstanding HEPA filter ensures that you won't create poor air quality in your apartment or blow dust around, since it seals in nearly every particle. This vacuum is compact for a canister model, making it ideal for confined spaces, thanks to its small wand and floorhead. It packs away neatly into a compact space, and you can store its tools on the wand using an included adapter. In terms of pickup, it's great for pet hair and fine materials on most surfaces, but its floorheads tend to push around medium- and large-sized materials. Try to empty it outdoors if possible, as this creates a cloud of dust that impacts air quality and scatters dust around.
HEPA filter seals in nearly every dust particle.
Easily picks up fine material.
Includes adapter for storing tools right on the wand.
Great pet hair pickup.
Struggles with medium and large debris.
Emptying creates a cloud of dust.
The Miele Boost CX1 is suitable for use on stairs, provided you're comfortable carrying a heavy vacuum around. It features a long power cord, allowing you to reach an outlet. While it clears away medium and large debris, its high suction means it easily picks up fine material, and it's great at removing pet hair. The HEPA filter seals in particles almost perfectly when vacuuming stairs, so you don't have to worry about poor air quality or blowing dust everywhere. However, the vacuum's bagless construction means that you'll create a cloud of dust when you empty it, so it's best not to do this in a stairwell.
HEPA filter seals in nearly every dust particle.
Great pet hair pickup.
Struggles with medium and large debris.
Heavy.
The Miele Boost CX1 does a decent job cleaning cars. Its power cord is long enough to use this very well-built vacuum in the driveway or garage. You can use its extension wand with either the crevice tool or upholstery tool, although it lacks a small turbo brush. Its high suction will easily clean automotive fabrics, and it's extremely effective on pet hair. When you're done, it's easy to put away in a compact configuration, but there are a lot of parts to clean first.
Great build quality.
High suction.
Great pet hair pickup.
Lots of parts to clean and maintain.
No small turbo brush.
The Miele Boost CX1 offers passable performance on bare floors. However, it does a poor job picking up medium or large debris on floors, as it tends to plow these around. Its high suction makes it much better for fine debris, though, especially when it's caught in your floors' cracks and crevices.
Easily picks up fine material.
Easily lifts fine debris from cracks and crevices.
Struggles with medium and large debris.
The Miele Boost CX1 delivers acceptable performance on carpets. Its floorheads handle even deeply embedded fine material well, but each has its issues with medium and large debris. On high-pile carpets, the turbo brush tends to scatter medium and large debris around and trap it, which eventually gets deposited back onto the carpet. On low-pile carpets, the straight suction floorhead leaves some medium and large material behind. The straight suction floorhead is difficult to move against carpet since the vacuum's high suction makes it pull very strongly against the floor.
Easily picks up fine material.
Struggles with medium and large debris.
The Miele Boost CX1 offers great pet hair pickup performance. The turbo brush floorhead is good at removing pet hair from carpets, even picking up embedded strands. However, the brush has an inactive zone for the belt, which leaves a strip of pet hair untouched. The upholstery tool on upholstered furniture is superb at removing pet hair, clearing everything in a single pass or two.
Good pet hair pickup from carpet.
Fantastic performance picking up pet hair from furniture fabric.
Inactive area on the turbo brush floorhead leaves a strip of untouched pet hair.
The Miele Boost CX1 has no impact on air quality during operation. Its bagless HEPA filter does an outstanding job of keeping dust particles contained as you vacuum. You don't need to worry about low air quality or dust settling around the room while this vacuum is in operation. Unfortunately, emptying this bagless vacuum creates a cloud of dust, which will impact air quality and scatter dust around your living space. If possible, empty this outdoors.
HEPA filter seals in nearly every dust particle.
Emptying creates a cloud of dust.
Performance Usages
Changelog
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Updated Feb 10, 2026:
We noted identical low-pile carpet pickup performance with the Miele Guard M1 Cat & Dog.
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Updated Jan 28, 2026:
We adjusted the Cracks test score slightly to ensure consistent interpretation of test results.
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Updated Jan 16, 2026:
We repeated the Cracks test using the manufacturer's recommended floorhead setting to ensure consistency with other reviews.
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Updated Jan 16, 2026:
We added text to this review for the new tests added in Test Bench 1.4, as well as the new verdicts.
Check Price
Differences Between Sizes And Variants
The variants are supplied with different floorheads and accessories depending on their intended use. They're also equipped with one of two interchangeable filters. Many more variants are only available in the EU.
| Model Name | Included Accessories | Available Colors | Notes |
|---|---|---|---|
| Boost CX1 | AllTeQ SBD 285-3 universal floorhead, Upholstery nozzle, Crevice nozzle, Dust brush | Lotus White; Graphite Grey; Obsidian Black | Equipped with Hygiene AirClean Filter |
| Boost CX1 Cat & Dog | AllTeQ SBD 285-3 universal floorhead, TurboTeQ STB 305-3 floorhead, Upholstery nozzle, Crevice nozzle, Dust brush | Obsidian Black | Equipped with HEPA filter |
| Boost CX1 Parquet | AllTeQ SBD 285-3 universal floorhead, Parquet Twister floorhead, Upholstery nozzle, Crevice nozzle, Dust brush | Lotus White | Equipped with HEPA filter |
| Boost CX1 125 Edition | AllTeQ SBD 365-3 universal floorhead, Upholstery nozzle, Crevice nozzle, Dust brush, Comfort handle | Lotus White | EU variant, equipped with Hygiene AirClean Filter |
| Boost CX1 125 Gala Edition | AllTeQ SBD 365-3 universal floorhead, Parquet Twister floorhead, Upholstery nozzle, Crevice nozzle, Dust brush, Comfort handle | Obsidian Black | EU variant, equipped with Hygiene AirClean Filter |
| Boost CX1 PowerLine | AllTeQ SBD 365-3 universal floorhead, Upholstery nozzle, Crevice nozzle, Dust brush | Lotus White; Graphite Grey | EU variant, equipped with Hygiene AirClean Filter |
| Boost CX1 Allergy | EcoTeQ Plus SBD 660-3 floorhead, Upholstery nozzle XXL SPD 20, Upholstery nozzle, Crevice nozzle, Dust brush | Cashmere Grey | EU variant, equipped with HEPA filter |
| Boost CX1 CarCare | EcoTeQ Plus SBD 660-3 floorhead, Upholstery nozzle XXL SPD 20, Upholstery nozzle, Extra-long, flexible crevice nozzle SFD 20, Crevice nozzle, Dust brush | Lotus White | EU variant, equipped with HEPA filter |
| Boost CX1 Cat & Dog PowerLine | AllTeQ SBD 365-3 universal floorhead, STB 305-3 turbo brush, Upholstery nozzle, Crevice nozzle, Dust brush | Obsidian Black | EU variant, equipped with HEPA filter |
| Boost CX1 Active | AllTeQ SBD 365-3 universal floorhead, Upholstery nozzle, Crevice nozzle, Dust brush | Graphite Grey; Obsidian Black | EU variant, equipped with Hygiene AirClean Filter |
| Boost CX1 Parquet PowerLine | AllTeQ SBD 365-3 universal floorhead, Parquet Twister floorhead, Upholstery nozzle, Crevice nozzle, Dust brush | Lotus White | EU variant, equipped with HEPA filter |
We tested the Miele Boost CX1 Cat & Dog. You can see our unit's label here.
If you encounter another variant, notify us in the comments.
Popular Vacuum Comparisons
The Miele Boost CX1 is a high-end bagless canister vacuum that shares many of the same internals and components with Miele's well-known bagged canister vacuums. It shares the 1200W motor with Miele Classic C1 and Miele Complete C3, and since it also shares floorheads with Miele's other models, the Boost CX1's performance is similar. The design of Miele's straight-suction and turbo floorheads places them too low to the floor to effectively vacuum up all medium and large materials, but their high suction makes them ideal for fine debris and cracks.
The Boost CX1 lacks a powerhead and can't be upgraded, so its performance in picking up pet hair with its air-powered turbo brush floorhead isn't quite as good as the Miele Complete C3 Cat & Dog with its powerhead. The Boost CX1's bagless design should lower recurring costs since you don't have to buy dirtbags, but unfortunately, the Boost CX1's yearly-replaceable filter actually costs more than a year's supply of dirtbags for the Classic C1. Comparing this Miele bagless canister vacuum to the Dyson Cinetic Big Ball Animal, a Dyson bagless canister, the Dyson has a powered floorhead, offers better debris pickup overall, and has no recurring costs because it uses a permanent filter; however, it isn't as well-built as the Miele. And stacked up against a flagship bagged canister vacuum, the SEBO Airbelt D4, you'll find the SEBO has better debris pickup, is slightly better built, has a much longer cord and hose, but the bagged design has a higher recurring cost than the Miele.
If you're looking for alternative options, consider our recommendations for the best canister vacuums, the best bagless vacuums, or the best vacuums with good suction.
The Dyson Cinetic Big Ball Animal is a slightly better vacuum overall than the Miele Boost CX1. It performs slightly better on every floor surface, is much easier to maintain, and has zero recurring costs versus the Miele vacuum's expensive replaceable filter. The Miele is much better built, though.
The Miele Classic C1 is a better vacuum than the Miele Boost CX1. Since they both use the same motor and floorhead, performance is similar, but the Classic C1 is easier to maintain. Its dirtbag contains all the dust, so you won't have to clean parts. Recurring costs should be lower on the Boost CX1 because it's bagless, but it uses a replaceable filter that's more expensive than the C1's dirtbags.
The Miele Boost CX1 and the Miele Guard M1 Cat & Dog perform identically on floors since they both have similarly powerful suction motors and use the same floorheads. However, the M1 is a bagged vacuum, which offers advantages over the bagless CX1. It doesn't need to be emptied as often, and emptying the sealed dirtbag is clean and hygienic. Allergy sufferers should note that emptying the bagless CX1 creates a dust cloud that will negatively affect air quality. As well, the CX1 uses an expensive replaceable filter, so the CX1 has recurring costs despite not needing dirtbags.
The Dyson V15 Detect and the Miele Boost CX1 are very different vacuums; their only common feature is that they're both bagless. The Dyson performs much better overall, though. It's a little easier to maintain and has zero recurring cost. However, the Miele is a canister vacuum, which has a significantly larger dirt compartment, and it also boasts higher build quality than the Dyson.
Test Results
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