Best pick for your answersmedium rooms
#2 Philips PureProtect Mini 900 AC0951 Rank 2 of 5 air purifiers for medium rooms in our ranking
Score 5.7 / 10 164 € grey · incl. delivery · checked on 18 October 2026
Air purifiers · Prices updated on 18 October 2026
The best air purifier for every budget in 2026
Every model with a known CADR ranked by measured facts and owners’ ratings, priced at 2 shops, delivery to Germany included.
#2Side by side
Pick one more model with “Compare” in the list. You can put up to 10 side by side.
| Kärcher AF 30 × | |
|---|---|
| Price and ranking | |
| The lowest price today at a shop that delivers to you, delivery included. A price with an asterisk comes from a shop abroad, and its delivery cost is our own estimate. Lowest price | – |
| Our own score out of 10: 60% measured facts and 40% shop ratings. Price does not count. Score | not in our ranking |
| Where the model stands in our ranking, among the purifiers for the same size of room. Rank | – |
| The average of the stars buyers give at the shops, with the number of reviews behind it. We only compare it from 20 reviews. Customer rating | – |
| Room size | |
| The size of room the purifier suits, with the largest room the maker names for it. Room size | –up to 30 m² |
| Size, noise and age | |
| How tall the purifier is. It decides whether it fits on a shelf or under a window sill. When it matters
| 48.6 cm |
| The month the model first went on sale. It shows how old the technology in it is. On the market since | October 2022 |
| Smart features and warranty | |
| Matter is the standard that lets devices from different makers work together. With it you can run the robot outside the maker’s own app. Matter | no (assumed) |
| Cleaning performance | |
| The room size the maker states. Makers use different rules, so we show it but never rank on it. Room size the maker claims | 30 m² |
| Filter | |
| How fine the filter is. True HEPA and H13 catch at least 99.97% of particles at 0.3 microns. HEPA-type is a weaker claim with no test behind it. When it matters
| H13 HEPA |
| Whether the particle and carbon layers are one filter or separate ones. Separate filters let you replace only the part that is spent. Filter layout | One combined filter |
| A filter of activated carbon that takes out smells and some gases. It does not catch particles. When it matters
| yes |
| Replacement filter part number | 2.863-067.0 |
| Running costs | |
| How long the maker says a filter lasts, in months of normal use. A filter that is spent cleans less. When it matters
| 12 months |
| Noise and power | |
| The sound level at the lowest speed, as the maker measures it. When it matters
| 26 dB |
| The sound level at the highest speed, as the maker measures it. When it matters
| 51 dB |
| The power the purifier draws at its highest speed. Power at the highest speed | 36 W |
| Air quality sensing | |
| What the purifier measures in the air. A particle sensor lets it speed up and slow down by itself. Air quality sensors | PM2.5, Temperature, Humidity |
| How the purifier measures fine dust. A laser sensor reads smaller particles and lower levels more precisely than an infrared one. Particle sensor | Laser |
| The fan speed follows the air quality the sensor reads. When it matters
| yes |
| Build | |
| The purifier’s shape: a small tabletop unit, a tall tower, a box that stands on the floor or a unit mounted on the wall. Shape | Floor box |
| How wide the purifier is. With its depth it decides how much floor it takes up. Width | 260 mm |
| How deep the purifier is, front to back. Depth | 260 mm |
| What the purifier weighs. It counts most if you move it from room to room. When it matters
| 5.8 kg |
| Warranty and certification | |
| Maker model numbers | 1.024-821.0 |
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.
Score 5.7 out of 10
medium rooms Philips PureProtect Mini 900 AC0951
164 €219 € 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 5.7 out of 10
large rooms Philips PureProtect Quiet 2200
216 €299 € 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 5.7 out of 10
open-plan spaces Philips PureProtect 3200
284 €379 € 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 5.7 out of 10
medium rooms Philips Air Performer 8000 AMF870
444 €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 4.6 out of 10
large rooms Philips PureProtect Water 3400
343 €429 € 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 3.0 out of 10
Score 2.8 out of 10
Lowest price at every shop that delivers to Germany, VAT and delivery included. * = delivery cost and VAT estimated for a foreign shop.
Robot vacuum market report, September 2026 A median price of – and 0 new models.
Frequently asked questions
What does a good air purifier cost in Germany?
The models in our ranking run from about 164 € to 444 € 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 →
Looking for something new? The air purifiers launched in the past year →