The brush and the bag carry this machine; the mop pad is the part that asks for you.
The D20 Air Plus earns its place on the brush and the bag: a comb-tooth main brush that strips hair as it turns, a detangling side brush, and a dock that swallows the pickup into a 4L bag so emptying stops being a weekly ritual. The cost is the wet half, since the pad has to be dealt with by hand before any run over carpet.
Not for you if you want a wet pass to cross a rug without anybody taking the pad off.
How Dreame D20 Air Plus scored
Why trust these scores: The six scores divide by what the listing does and does not give. Four of them, carpet and rugs, hard floors and edges, pet hair, and navigation, rest on rows Dreame prints for this model with a test condition beside most: the suction rating and the levels it offers, the battery and its quoted run, the bag and tank capacities, the robot and base heights, and the room, zone and voice controls the app carries. The two that sit lower do so because the page is silent rather than because the machine fell short. No sound figure appears on it at all, which leaves noise with nothing checkable behind it, and no charge time is printed, which is one of the reasons mopping sits below the rest. No vendor can pay for a score. Read how we rate.
What we like
- A comb-tooth main brush, so hair comes off the roll instead of winding onto it
- A dock that empties the machine into a 4L bag sized for months, so the bin becomes an occasional errand
- Suction that rises on its own when the sensors read carpet, with the boost tunable per floor in the app
- A LiDAR map that holds up to four floor levels, which is what a staircase at home asks for
- A 3,200mAh battery quoted at up to 150 minutes on the quiet setting
Watch out for
- Mopping is the one job here that never becomes hands-off, since the pad stays put until it is removed
- No sound rating is published, so the one figure a shared building needs cannot be checked
- No charge time is printed, so the gap between runs cannot be planned from the page
- Corner reach and step height go unmeasured on the page, which leaves the edge work to be judged without a figure
- Running the machine means running an app, since the plan, the zones and the timetable are all held there
How we rated the Dreame D20 Air Plus
Two questions decide whether a machine like this is worth its price: how much it lifts on the first pass, and how seldom its owner has to touch it. Dreame answers both where the machine is sold, and the answers can be checked against the published specification, which names the suction in pascals, both dust and water capacities, the battery, and how tall the robot and its dock stand. Where the specification stops, so does this review. ElevenReview does not run hands-on tests. Sources at the foot of this article name the page each number was taken from.
Carpet & rugs
Dreame rates the D20 Air Plus at 20,000Pa in Vormax mode and attributes the figure to its own lab rather than to a published standard, which makes it a maker’s number to weigh rather than an independently checked one. What supports the carpet case more than the headline is the behaviour around it: the listing states that the sensors raise suction when carpet passes underneath, and that the boost can be tuned per floor in the app. The gap is on the wet side. The pad is a flat one that stays at a single height, so a room that mixes pile with bare boards is vacuumed well and mopped only where the owner lets the pad go.
Hardwood & edges
Hard floors are the easier half of this machine’s job. A detangling side brush works along the skirting and the mop pad trails behind it, which is where the 2-in-1 part earns its place on a sealed floor. What the listing does not give is any measure of the edge pass or the step between rooms: nothing for how far the side brush reaches into a corner, and nothing for the height of threshold the robot will cross. Neither gap is closed here, which is why this score sits below the carpet one.
Pet hair pickup
Hair is the job Dreame designs this machine around, and the listing says so in two places: a main brush with comb teeth that strips strands as it turns, and a side brush shaped so that hair does not wrap around it. The 20,000Pa top level supplies the airflow to carry what the brushes lift. Together they make the strongest case on the page, which is why the score here leads the six. The caution is that both anti-tangle claims are the maker’s own, stated without a measured rate or a comparison set beside them, so they are recorded as claims rather than results. A household with a shedding animal should still expect to check the brush now and then, though the comb teeth are there to make that a glance rather than a chore.
Navigation & app
Dreame fits LiDAR and a navigation layer it calls Smart Pathfinder, and the feature list behind them is a full one: a map the app can show in three dimensions, up to four floor levels stored for a house with stairs, no-go zones and virtual boundaries drawn on the plan, per-room jobs, and voice control through Alexa, Google and Siri. The map count is the only figure in that list the listing prints, and it is a useful one for anyone with a staircase. The caveat is where all of it lives: the map, the zones and the schedule sit in the Dreamehome app, so a phone and an account are part of running the machine rather than extras beside it.
Noise
No sound figure appears anywhere on the D20 Air Plus page, in dB or in any other form, which leaves noise as the one criterion with nothing behind it to check. That absence is what sets the score, not a bad reading, since there is no reading. Anyone in a flat above other people, or working from home while the robot runs, has to decide without the single number that would settle it. A buyer who needs that figure before paying is better served by a model that prints one with the mode attached.
Mopping
The wet half is a flat pad fed from a 280ml tank, and at that size a mopping run is a light pass over a sealed floor rather than a wash. Two things the page says by omission matter as much as the tank. There is no row for mop lifting and none for automatic mop removal, so the pad stays where it is fitted and crosses a rug carrying whatever water is on it unless it is taken off by hand. Mopping is scored below the vacuuming criteria for that reason, which is the one decision this machine hands back to its owner.
The bag, the battery and what wears out
- The dock’s 4L bag is rated at up to 120 days of collection, a figure Dreame attributes to its own lab, so the routine is a bag swap a few times a year rather than a bin emptied every week.
- A 3,200mAh battery carries up to 150 minutes on quiet, again from the in-house lab and measured over 140m², so a pass at the top suction level will not reach it.
- No charge time is published, which leaves the wait between runs as the one dock figure the page does not answer.
- The robot carries a 220ml dust box of its own, which is what it fills before it returns to the base.
- The box holds the base station, the robot, a 2-in-1 water tank with a dust box, a mop pad and a main brush already fitted, a side brush, two dust bags with one fitted, a filter, mop pad holders and a brush guard.
- The page states a three-year warranty and a 30-day return window.
Who the Dreame D20 Air Plus is for
A home that mixes hard flooring with rugs and sheds hair on the floor. The dock takes the emptying away, the comb-tooth brush is the part to buy if an animal lives indoors, and the map holds four floors, so a house with stairs keeps a plan for each. It also suits anyone who would rather set a routine once in an app than press a button each morning. It does not suit a floor where the mop has to cross carpet without being taken off first, or a home that needs a published sound rating before it commits.
Frequently asked questions
Is the D20 Air Plus a vacuum only, or does it mop as well?
What has to be cleared before the dock goes in?
More physical products we have reviewed
Each built from named sources and published criteria.
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Our verdict
Two things decide this machine. The first is pickup: the top suction level, a brush designed to shed hair rather than gather it, and a side brush the strands slide off. Together they make hair the job it does best. The second is the dock: a 4L bag that Dreame rates at up to 120 days, so the bin is a few swaps a year rather than a weekly chore. Where it stops is the mop, whose pad stays at one height and comes away only by hand, and the figures a careful buyer would want and the page does not print, a sound rating first among them.
Not for you if your home is wall-to-wall carpet and the mop would stay fitted, or you need a sound rating before you buy.
Sources
Dreame (dreametech.com), checked 15 September 2026: the D20 Air Plus listing and the spec table beneath it, for the suction rating, the battery and run time, the dust bag, dust box and water tank capacities, the brush and mop specification, the mapping, zone and voice features in the app, the warranty and return terms, and the contents of the box.
ElevenReview Editorial Team
Reviews & StandardsElevenReview is an editorial team. Ratings are built from published specifications, vendor documentation and named third-party benchmarks, and the sources we used, with the date we checked them, are listed on every review.
Last updated Sep 15, 2026 · Some links on this page may be affiliate links; see our Affiliate Disclosure.