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Comparing 2 robot vacuums

Your shortlist side by side: today’s price, our score and every fact the maker states.

  1. ×
    • Highest score
    AirDoctor 2000

    € 359bol.com

    4.2
  2. ×
    • Best on the most facts
    Kärcher AF 20

    On the market since October 2022

    No price today

    not in our ranking Best on 1 fact

Prices updated on 27 October 2026

+ Add a robot (up to 10) Clear

Side by side

Green is the best of these 2, also when they share the lead.

AirDoctor 2000 × Kärcher AF 20 × Best on 1 fact
The facts that decide most
Lowest price € 359bol.com –
Score 4.2 not in our ranking
Height lower is better 47.5 cm 34.6 cm best
Tests, rank and ratings
Rank rank 30 of 34 for medium rooms –
Customer rating – –
Running cost
Filter life longer is better same on both 12 months 12 months
Room size
Room size same on both medium roomsup to 28 m² medium roomsup to 20 m²
Noise and age
On the market since – October 2022
Smart features and warranty
App control None –
Matter same on both no (assumed) no (assumed)
Cleaning performance
Clean air delivery rate (CADR) 275 m³/h 220 m³/h
CADR measured to The maker's own test Not stated
CADR for smoke 275 m³/h –
Room size we compare on 23 m² 18 m²
Room size the maker claims 28 m² 20 m²
Air changes the maker assumes – 3 per hour
Filter
HEPA filter class same on both H13 HEPA H13 HEPA
Filter layout Separate filters One combined filter
Activated carbon filter same on both yes yes
Filter parts 2 –
Replacement filter part number – 2.863-056.0
Running costs
Carbon filter life 6 months –
Noise and power
Noise at the lowest speed 40 dB 26 dB
Noise at the highest speed 55 dB 52 dB
Power at the highest speed 55 W 24 W
Power on standby – 0.5 W
Air quality sensing
Automatic mode same on both yes yes
Air quality sensors – PM2.5
Particle sensor – Laser
Build
Width 350 mm 220 mm
Depth 170 mm 220 mm
Weight 4.5 kg 3 kg
Shape – Tabletop
Extras
Ioniser Can be switched off None (assumed)
Warranty and certification
Warranty 2 years –
Maker model numbers AD2000 1.024-820.0

Facts as the maker states them. A dash means the maker does not name it. Each model’s page gives the source of every fact. Noise is the maker’s own figure, so we do not judge it, and a customer rating only counts from 20 reviews.

The score is out of 10: 60% measured facts and 40% shop ratings. A model is ranked only when its CADR is known. Method.

Room size
Price
Colour
Customer rating5★
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Discount30% & up
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Number of reviews
Clear all filters 0 of 212 models

No model fits all these filters.

Only models rated at least 5 stars from at least 20 reviews at the shops that report customer ratings. Models with fewer reviews or without a rating fall outside this filter.

Lowest price at every shop that delivers to the Netherlands, VAT and delivery included. * = delivery cost and VAT estimated for a foreign shop.

Air purifier market report, September 2026 No prices yet, but 1 new model.

Frequently asked questions

How big an air purifier do I need?

Match it to the size of the room. Each model in the ranking is grouped by the room size its maker states, and the lists keep a model out when it states none. A common rule of thumb is a clean air delivery rate (CADR) in m³/h of at least 12 times the room’s floor area in m², for a ceiling of 2.4 metres.

What is the difference between HEPA H13 and True HEPA?

Both are high-efficiency filters. True HEPA is the American name for a filter that catches 99.97% of particles of 0.3 micrometres, and H13 is the European class for 99.95%. We read the class the maker states and do not treat a filter called HEPA-type or HEPA-like as either.

Can an air purifier make ozone?

Some can, mostly models with an ioniser or a plasma feature. California limits ozone from indoor air cleaners to 50 parts per billion, and the CARB certification shows a model meets that limit. Our asthma filter leaves out models whose ioniser cannot be switched off.

Whose tests we use

Beside each model we also show where these testers place it in their own lists, without counting it in the score:

How we combine measured facts and owners’ ratings into one score is on the method page.

Looking for a bargain? The air purifiers with a real price drop today →

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