Score 7.0 out of 10
Comparison · 3 models
Comparing 3 robot vacuums
Your shortlist side by side: today’s price, our score and every fact the maker states.
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- Best on the most facts
Prices updated on 17 October 2026
Side by side
Green is the best of these 3, also when they share the lead.
Drag a model by its header to move its column, or use the arrows.
| | | | |
|---|---|---|---|
| Price and ranking | |||
| Lowest price | – | – | – |
| Score | not in our ranking | not in our ranking | not in our ranking |
| Rank | – | – | – |
| Customer rating | – | – | – |
| Room size | |||
| Room size same on all | medium roomsup to 16 m² | medium roomsup to 50 m² | medium roomsup to 20 m² |
| Size, noise and age | |||
| Height lower is better | 50 cm | 37 cm | 36 cm best |
| On the market since | – | – | July 2023 |
| Smart features and warranty | |||
| App control same on all | Wi-Fi | Wi-Fi | Wi-Fi |
| Voice assistants | Alexa | Alexa, Google Assistant | Alexa, Google Assistant |
| Matter same on all | no (assumed) | no (assumed) | no (assumed) |
| Cleaning performance | |||
| Clean air delivery rate (CADR) | 192 m³/h | 250 m³/h | 240 m³/h |
| CADR measured to | DOE test | Not stated | Not stated |
| CADR for smoke | 192 m³/h | – | 240 m³/h |
| CADR for dust | 219 m³/h | – | – |
| CADR for pollen | 224 m³/h | – | – |
| Room size we compare on | 16 m² | 21 m² | 20 m² |
| Room size the maker claims | 16 m² | 50 m² | 20 m² |
| Air changes the maker assumes | – | – | 4.8 per hour |
| Filter | |||
| Filter parts | 1 | – | – |
| HEPA filter class | – | True HEPA | True HEPA |
| Filter layout | – | One combined filter | One combined filter |
| Activated carbon filter | – | yes | yes |
| Replacement filter part number | – | Filter O | – |
| Running costs | |||
| Filter life | 12 months | 12 months | 6 months |
| Noise and power | |||
| Noise at the lowest speed | 24 dB | 27 dB | 22 dB |
| Noise at the highest speed | 52 dB | 54 dB | 50 dB |
| Power at the highest speed | – | 55 W | 23 W |
| Air quality sensing | |||
| Air quality sensors | PM2.5 | – | PM2.5 |
| Automatic mode same on all | yes | yes | yes |
| Particle sensor | – | – | Laser |
| Build | |||
| Shape | Floor box | Tabletop | Tabletop |
| Also works as | Fan, Heater | – | – |
| Width | 260 mm | 241 mm | 220 mm |
| Depth | 260 mm | 241 mm | 220 mm |
| Weight | 6.2 kg | 3.1 kg | 2.7 kg |
| Extras | |||
| Ioniser | – | Can be switched off | – |
| Warranty and certification | |||
| Maker model numbers | – | AT5U207-NWE | – |
| Warranty | – | – | 2 years |
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. Models whose CADR we do not hold yet, so they are not in our ranking. We do track their prices.
Score 5.7 out of 10
medium rooms Philips Air Performer 8000 AMF870
443 €549 € Discount as claimed by the shop. We have not followed this shop for the 30 days before the sale began, so we cannot verify the old price yet.How we work this out
Score 4.8 out of 10
Score 3.0 out of 10
Score 2.8 out of 10
Not ranked
Hanseatic KJ150
47 €79 € Discount as claimed by the shop. We have not followed this shop for the 30 days before the sale began, so we cannot verify the old price yet.How we work this out
Not ranked
Bosch Air 500
57 €99 € Discount as claimed by the shop. We have not followed this shop for the 30 days before the sale began, so we cannot verify the old price yet.How we work this out
Not ranked
Rowenta Pure Air Mini
59 €79 € Discount as claimed by the shop. We have not followed this shop for the 30 days before the sale began, so we cannot verify the old price yet.How we work this out
Not ranked
Hanseatic KJ250
74 €99 € Discount as claimed by the shop. We have not followed this shop for the 30 days before the sale began, so we cannot verify the old price yet.How we work this out
Not ranked
Hanseatic KJ500
84 €199 € Discount as claimed by the shop. We have not followed this shop for the 30 days before the sale began, so we cannot verify the old price yet.How we work this out
Not ranked
Not ranked
Hanseatic KJ400
94 €129 € Discount as claimed by the shop. We have not followed this shop for the 30 days before the sale began, so we cannot verify the old price yet.How we work this out
Not ranked
Not ranked
Bosch Air 2000
144 €
Not ranked
Shark HP072EU
157 €
Not ranked
Gutfels LR 67015
160 €549 € Discount as claimed by the shop. We have not followed this shop for the 30 days before the sale began, so we cannot verify the old price yet.How we work this out
Not ranked
Bosch Air 2000i
174 €
Not ranked
Bosch Air 4000
195 €
Not ranked
Shark HP100EU
199 €229 € Discount as claimed by the shop. We have not followed this shop for the 30 days before the sale began, so we cannot verify the old price yet.How we work this out
Not ranked
- Trotec AirgoClean 170+
- AEG AX71-304GY
- AEG APO50371DG
- Dreame AP10
- Dyson HushJet Purifier Compact HJ10
- Dyson Purifier Cool PC1
- Dyson Purifier Hot+Cool HP1
- Philips Air Performer AMF970
- Dreame FP10
- Dyson Find+Follow Purifier Cool PC3
- Dyson Purifier Cool PC2 De-NOx
- Dyson Purifier Humidify+Cool PH2 De-NOx
- Dyson Purifier Big+Quiet BP02
- Dyson Purifier Big+Quiet Formaldehyde BP04
- Miele PAC 1045
Show all 15 other modelsShow fewer
Lowest price at every shop that delivers to Germany, VAT and delivery included. * = delivery cost and VAT estimated for a foreign shop.
Short answers
- On 17 October 2026 the best air purifier in our ranking is the Clean Air Optima CA-503 Compact, with a score of 7.0 out of 10: rank 1 of 1 for small rooms, today 132 € at OTTO including delivery to Germany.
35 of 35 checked on 17 October 2026
Frequently asked questions
What does a good air purifier cost in Germany?
The models in our ranking run from about 132 € to 443 € today. We show the lowest verified price of the day per model, VAT and delivery included.
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.
How often do you update the prices?
Every day, at every shop we follow. We read the prices from the shops’ own product feeds and web shops. We check them for errors and keep them, so every product page shows what a price did over the last 90 days. We only call a discount real when the price also sits below the level of the preceding 30 days. We link to Amazon too, but show no Amazon price until we read it through Amazon’s own API. Until then the price is on Amazon itself. Per shop: how and how often
Where we check prices
We read prices every day at most shops, from their product feed or web shop. We check them for errors and keep them, so you can see what a price did over the last 90 days. We link to Amazon too, but show no Amazon price until we read it through Amazon’s own API. Until then the price is on Amazon itself.
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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