
Best selling Air purifiers
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1. Philips PureProtect 3200 Series
SilentWings technology: ensures low-noise cleaning of just 15 dB(A). Even at maximum speed, it is quieter than a normal conversation. AeraSense technology: intelligent air quality sensor recognises and adapts to your air quality requirements. Low energy consumption: At maximum power, the air purifier consumes 36 W, less energy than a conventional light bulb.
The Philips PureProtect 3200 Series intelligent air purifier AC3221/13 offers great cleaning performance and impresses with its compact design and quiet operation. Thanks to its innovative double filter design, it combines a smaller size with a higher cleaning speed and thus ensures even faster clean air in the room. The device captures allergens from dust mites, pollen, pets and mould spores as well as the smallest particles, viruses and bacteria. With the activated carbon layer, it also captures odours and gases that impair air quality. Thanks to SilentWings technology, the air purifier enables low-noise air purification.
Pro
- Very quiet, looks good and fulfils its task very well!
- Can be controlled from anywhere via app
- Quiet night mode
Contra
- Replacement filters are expensive
- nothing found
- somewhat voluminous

2. Xiaomi Smart Air Purifier 4 Compact
The Xiaomi Smart Air Purifier 4 Compact offers peace of mind and all-day protection for anyone who suffers from allergies. The air purifier protects the health of your airways by keeping the air in your home clean and safe to breathe. This is ensured by a highly efficient filter system that removes up to 99.97 per cent of particles down to a size of 0.3 micrometres. In addition to the highly efficient filter system, this compact air purifier is also effective against pollen, animal hair and other allergens. The quiet and energy-efficient brushless DC motor operates in quiet mode with a noise level of just 20 dB and a maximum power consumption of 27 W.
Technical data
Category: Air purifier
Room area: 27 m²
Max. Air circulation: 230 m³/h
CADR value: 230 m³/h
Noise level (max.): 50 dB
Data analysis: Device display
Additional functions: App control
Smart home ecosystem: Amazon Alexa, Google Assistant.
Pro
- Relatively quiet
- Super design
- Good app
Contra
- There are no stronger filters available as accessories.
- Limited setting options if not controlled via app
- Filters are expensive

3. Xiaomi Smart Air Purifier 4 Pro
Clean and healthy air at home. Finally breathe easy with the air purifier from Xiaomi. The Xiaomi Smart Air Purifier 4 Pro allows allergy sufferers to take a deep breath. This little helper cleans your indoor air of dust, pollen, cigarette smoke, fine particles, and other allergens. It can be controlled via the MI Home app, as well as through Alexa and Google Assistant. Its modern design blends seamlessly with your interior.
Pro
- Normally (continuous operation) very quiet
- Good design
- Can also be set for smaller rooms via app
Contra
- a little too big
- App and Xiaomi account required for remote operation, no remote control included
- Expensive replacement filters

4. Philips PureProtect Mini 900 Series
The Philips air purifier provides clean air in less than 12 minutes thanks to a high filter performance of 250 m³/h (CADR) and is suitable for rooms up to 65 m². Its 3-layer HEPA filtration system removes 99.97% of the smallest particles (0.003 microns), including viruses and allergens such as dust, pollen and pet dander. With its whisper-quiet quiet mode (20.5 dB) and dimmed lighting, it is ideal for sleeping areas.
The air purifier reduces 99.9 % of airborne viruses (e.g. H1N1) and bacteria, captures odours and gaseous pollutants (e.g. NO₂, VOCs) and employees energy-efficiently with just 23 W - less than a light bulb. The AeraSense technology monitors the air quality 1,000 times per second and automatically adjusts the output.
With the Philips Air+ app, the device can be conveniently controlled from anywhere, including real-time air quality monitoring. Functions such as "Fresh Wake-up" and "Fresh Bedtime" optimise air purification for restful sleep. The long-lasting filter lasts up to one year, and the device reminds you to replace it in good time.
Sustainably designed, the device contains over 23% recycled plastic and has been developed for a long service life. It combines effective air purification with environmentally friendly design.
Pro
- Quiet and effective
- Without an app - it works
- Many functions
Contra
- Cannot be connected to the app
- Stronger fan speeds somewhat loud
- at the highest level Loud

5. Philips 4000i Series
The air purifier impresses with its impressive performance and compact size thanks to the innovative double fan design. With a filter performance of 600 m³/h (CADR), it cleans rooms up to 156 m³ and can clean a 20 m² room in less than 5 minutes. The 4-layer HEPA filter system with pre-filter, NanoProtect HEPA and double activated carbon layer captures 99.97% of particles down to 0.003 micrometres - smaller than the smallest known virus.
SilentWings technology reduces the noise level by 35 % so that the air purifier remains whisper-quiet at just 15 dB(A) even at maximum power. It removes 99.99 % of allergens from dust, pollen, pets and mould, making it ideal for allergy sufferers (ECARF-certified). It also reduces 99.9 % of airborne viruses, including H1N1, Staphylococcus bacteria and SARS-CoV-2.
The activated carbon layer filters over 96% of gaseous pollutants such as NO₂, toluene and VOCs without releasing ions, chemicals or ozone. With an energy consumption of just 54 W, the air purifier is particularly energy-efficient.
The AeraSense technology monitors the air quality 1,000 times per second and automatically adjusts the cleaning performance. The device can be controlled from anywhere via the Philips Air+ app, including AI-based Auto+ mode to optimise energy consumption and noise levels.
The Fresh Bedtime mode with gentle night light ensures a restful sleep, while Fresh Wake-up cleans the air before you wake up. The long-life filter lasts up to 1 year and the accessory pack (FY4200) includes both filters. Sustainably designed, the device is made from over 30% recycled plastic and fulfils stringent durability tests for continuous operation.
Pro
- There is an app
- Size and design
- High-quality workmanship
Contra
- Relatively short filter service life
- Always displays good - very good air, is built more for construction sites

6. Xiaomi Smart Air Purifier Elite
The Xiaomi Smart Air Purifier Elite offers peace of mind and all-day protection for those suffering from allergies. The air purifier safeguards the health of your respiratory system by keeping the air in your home clean and safe to breathe. This is achieved through a highly efficient 3-layer filtration system that removes up to 99.98% of 0.3-micron particles, such as Influenza A (H1N1) viruses, dust, odors, and allergens from the air. With an efficiency of 200 m²/h, it is suitable for rooms of up to 125 m². Additionally, it has a Clean Air Delivery Rate (CADR) of 600 m³/h.
Pro
- Optics, operation, filter station
- Filters odours
- Replaceable filters
Contra
- Only with cloud
- Filter.
- More massive than expected

7. Philips PureProtect Water 3400 Series
The air purifier ensures thorough cleaning in rooms up to 78 m² with a CADR of 300 m³/h. A 20 m² room is cleaned in less than 10 minutes. The 3-layer HEPA filter system (pre-filter, NanoProtect HEPA, activated carbon) removes 99.97 % of particles down to 0.003 micrometres, smaller than the smallest known virus. The automatic air humidification delivers up to 650 ml/h and adapts to the desired humidity level thanks to AeraSense technology.
With the hygienic NanoCloud technology, the air is humidified with up to 99.9 % less bacteria than with conventional devices. The purifier also removes 99.9 % of viruses (e.g. H1N1, SARS-CoV-2) and bacteria. It is whisper-quiet in idle mode (16.5 dB) and at 43 W consumes less energy than a light bulb.
AeraSense technology detects pollutants in real time and automatically optimises the settings. The Philips Air+ app can be used to control the appliance and monitor the air quality. The activated carbon layer filters over 90% of gaseous pollutants and odours, e.g. NO₂ and VOCs, without releasing harmful ions or ozone.
The 3.2-litre water tank allows up to 15 hours of humidification without refilling. The long-life filter lasts up to 1 year and the device automatically notifies you when it needs to be changed. Ideal for healthy, clean air and a pleasant indoor climate.
Pro
- Very quiet
- Stable and functional iOS app
- Discreet and beautiful design
Contra
- Statistics for several rooms
- should be able to be assigned to several rooms
- App could be better

8. Stahlwerk Ozone generator OG-40 ST
With an ozone output of 40 g/h and 200 watts of power, the STAHLWERK OG-40 ST ozone generator is ideal for effectively neutralising odours.The ozoniser reliably purifies the ambient air and removes unpleasant odours from vehicle interiors, living rooms, basements or garages, upholstery, furniture, etc. This means that all types of unpleasant odours, such as the smell of smoke, pets or mould, can be effectively combated.
Pro
- Handy and light
- Odours disappear

9. Xiaomi Smart air purifier 6
The Mijia Smart Air Purifier 6 by Xiaomi is an advanced air purification device designed to continuously improve indoor air quality in living areas. The device combines precise sensor technology with a multi-stage purification system to remove fine dust, allergens, bacteria, viruses, odours and other pollutants from the air to promote a healthier indoor environment. Integration into smart ecosystems and intuitive controls characterise the air purifier as an intelligent and versatile solution for the modern household.
At the heart of the device is an improved, five-sensor system that continuously analyses relevant indoor air parameters, including ultrafine particles (PM1), dust, PM2.5, temperature and humidity.
The Mijia Smart Air Purifier 6 is also equipped with integrated UV sterilisation, which specifically contributes to the reduction of bacteria and viruses in the air flowing through it. The combination of mechanical filtration and UV light not only removes particles and odours from the air, but also hygienically treats it. This technology works automatically in the background and adds another layer of protection to the multi-stage filter system for a clean and healthy indoor climate.
The air purifier is able to achieve a high air flow rate, ensuring rapid circulation of purified air. With a particle CADR (Clean Air Delivery Rate) performance of up to 443 m3 per hour, the device can efficiently purify air in medium-sized rooms.
The Mijia Smart Air Purifier 6 offers a local display of the air quality via a colour display and the option of networking with the Xiaomi Smart Home system. Individual settings can be made, operating cycles planned and the status of the filter monitored via the corresponding app. This networking capability allows the appliance to be flexibly adapted to different needs and contributes to efficiency and user-friendliness in everyday life.

10. Dyson Cool Gen1 TP10
The Dyson Purifier Cool Gen1 air purifier with fan function automatically recognises and removes pollutants and traps them.
Detects and removes
Automatically detects particles and gases in the air. The HEPA and activated carbon filter removes gases and 99.95% of pollutants from the air.¹
LCD display
The LCD display analyses and reports PM2.5 and PM10 particles in real time.
Distributed
The Air Multiplier technology ensures that purified air is distributed throughout the room.²
Cooling airflow
At higher temperatures, a strong airflow of purified air provides a pleasant cooling effect.
Rotating movement up to 350˚
The adjustable rotary movement distributes the purified air throughout the room.²
Night mode
Monitors the air quality and purifies the air at a reduced volume and with a dimmed display.
No connection to the MyDyson app.
1 Filter efficiency tested at 0 1 micron (EN 1822 ISO 29463)
2 Air distribution and cleaning cover in a room with a volume of 81 m³ (TM003771).
