The D20 Air Plus is the surprise of this cap. It carries a self-empty dock with the largest bag in the group, 4 L, and the maker quotes up to 120 days between changes, which is the kind of spec that normally costs far more. A dual anti-tangle brush set handles long hair, and a mop pad covers light damp work.
Its 20,000 Pa label is the highest here, and as always it is a peak figure, so the brush design and the bag matter more. It sits at the top of the price band under this cap, and in return it offers a dock that none of the other picks matches. Beside the Roborock Q7 L5 it trades laser mapping for the dock.
The pad is rinsed by hand, so mop only on hard floors and keep the pad off rugs. The 120 day figure is a best case, so check the bag at one month. Brand-specific bags are a running cost, so buy a spare pack early. Owners who run it daily in a pet home should expect the bag to need changing well before the quoted date, which is why the first change is a good test of the claim.
What works
- 4 L dock bag with up to 120 days quoted
- Dual anti-tangle brushes
- 20,000 Pa suction label
- Mop pad included
Watch out for
- Top of the price band under this cap
- Pad is rinsed by hand
- Bags are brand-specific
Spec sheet
- Suction
- 20,000 Pa
- Bag
- 4 L, up to 120 days
- Brushes
- Dual anti-tangle
- Cleaning
- Vacuum and mop
- Fit
- Pets, carpet, hard floor






