Protect yourself and your passengers effectively from pollen, fine dust, bacteria, and unpleasant odours. High-quality cabin air filters with activated carbon filter up to 99% of pollutants from the air and guarantee a fresh, healthy climate in the vehicle. In our current comparison, we take a close look at 7 top-class filters, rated according to customer feedback, technical features, and value for money. You'll find the right filter for your needs in no time.
The BOSCH activated charcoal cabin air filter ensures a healthy and comfortable climate in your vehicle, even in dusty cities or during long traffic jams. It reliably filters pollen, dust, bacteria, and unpleasant odours out of the air and thus ensures noticeably better air quality.
Advantages
Excellent filter performance against pollen and allergens
Standard activated charcoal filter without additional special functions
Thanks to the multi-layer filter fleece, both large dirt particles and the smallest, finest particles down to 0.0025 mm are trapped. The activated carbon layer also traps harmful gases and neutralises unpleasant odours, while protecting the air conditioning system from dirt. The result: fresh air, clearer vision, and a pleasant interior that promotes comfort and concentration.
BOSCH activated charcoal filters are easy to replace and offer long-lasting protection. They combine proven OEM quality with an attractive price-performance ratio – ideal for drivers who value health, safety, and clean air.
Specification
Value
Filter design
Activated carbon filter
Length
287 mm
Width
211 mm
Height
34 mm
Quantity
1 piece
Item number
1987432397
EAN
4047023215130
Reasons to buy and key features
Proven BOSCH quality for long-lasting protection
Activated carbon technology against odours and gases
Wide vehicle compatibility for many car brands
Tip from AUTODOC specialists: Change your cabin air filter at least once a year or every 12,000 miles. Allergy sufferers and people with hay fever should change the filter in spring before the pollen season to ensure optimum protection.
The MANN-FILTER FreciousPlus is a biofunctional premium cabin air filter with an innovative polyphenol coating that removes almost 100% of pollutants such as pollen, fine dust, nitrogen oxides, and allergens from the cabin air. The antibacterial and fungicidal effect of the plant-based active ingredient polyphenol reliably prevents the formation of bacteria and mould directly in the filter.
Advantages
Almost 100% protection against pollen, fine dust, and allergens
Polyphenol coating neutralises allergens directly
Antibacterial effect prevents mould and bacteria growth
Quick installation and long-lasting air quality
Disadvantages
Higher price than standard filters
Thanks to the high-quality filter media, only fresh, healthy air flows into the interior, while even the smallest particles are effectively trapped. The filter can be installed quickly and easily in around 12 minutes and ensures healthy protection for the driver and passengers in the long term.
Specification
Value
Filter design
Activated carbon filter with polyphenol
Additional information
FreciousPlus, antibacterial, fungicidal
Length
288 mm
Width
215 mm
Height
34 mm
Installation position
Below the glove compartment
Installation time
12 minutes
Item number
FP 2939
Reasons to buy and key features
FreciousPlus technology, beneficial for allergy sufferers and asthmatics
Up to 99.9% separation of particulate matter and NOx
Antibacterial coating prevents the formation of germs
Premium quality from original equipment manufacturer Mann
The PURFLUX AH378 is a solid cabin pollen filter that offers drivers an effective and affordable solution for clean air in their vehicles. It reliably traps pollen, dust, and larger particles, ensuring a pleasant indoor climate without the cost of an activated carbon filter.
Advantages
Very attractive price for budget-conscious drivers
Reliable pollen protection for allergy sufferers
Good fit for many vehicle models
Solid workmanship despite the low price
Disadvantages
No activated charcoal filter and so no odour filtration
Shorter service life than premium products
Reduced fine dust separation
The high-quality filter fleece ensures efficient particle capture. Ideal for drivers who change their filter regularly and want value for money.
PURFLUX, a French brand in the car parts market, guarantees reliable quality with the AH378. The filter is a good choice for anyone who wants clean cabin air without having to compromise on comfort or safety.
The MEYLE premium cabin air filter was developed for drivers who do not compromise when it comes to air quality. As an established quality brand in the automotive sector, MEYLE supplies a high-end product that combines state-of-the-art filter technology with outstanding workmanship.
The multi-layer filtration combines activated carbon with a special NOx-absorbing coating to provide reliable protection against nitrogen oxides, fine dust, allergens, and unpleasant odours. Particularly in urban areas with high levels of pollution, this filter ensures noticeably cleaner and healthier interior air. Thanks to its anti-allergic properties, it offers ideal protection for sensitive people, such as drivers with hay fever, asthma, or other respiratory problems.
This cabin air filter is the right choice for anyone who values maximum safety, maximum comfort, and premium quality. It fulfils modern OEM standards and delivers first-class filter performance at OEM level.
FEBI BILSTEIN, part of the renowned Bilstein Group, is known for reliable spare parts in OE quality. The FEBI BILSTEIN 09446 is the ideal choice for drivers looking for a simple, functional cabin air filter without any extras.
Advantages
Lowest price in the entire comparison
Solid basic filtration against pollen
Proven quality from FEBI BILSTEIN
Disadvantages
No activated carbon and so no odour filtering
Thinner filter with less filter surface
Shorter service life than premium filters
It offers reliable protection against pollen and large dust particles and thus ensures a pleasant climate inside the vehicle, especially for drivers without allergies or special air quality requirements.
Even on busy roads or in city traffic, the pollen filter filters dust, pollen, and other air particles from the cabin air, increasing comfort and promoting the well-being of the driver and passengers.
As an economical solution, the FEBI BILSTEIN pollen filter offers a solid basic performance – ideal for all those who value functionality and an attractive price-performance ratio.
As an own brand for high-quality spare parts, RIDEX offers solid quality at a fair price. The RIDEX 424I0083 combines reliable pollen and HEPA filtration and ensures clean, healthy air in the vehicle. The advanced HEPA filter material traps even the smallest particles and noticeably improves the interior climate.
Advantages
HEPA filter technology for fine particles
Greater height offers more filter surface
Attractive price for the performance offered
Classic fleece filter with proven technology
Disadvantages
No activated carbon for odour filtration
No antibacterial coating
The increased height of 57 mm offers more filter surface, increases service life, and improves filtration efficiency. The filter thus guarantees a constantly high level of protection against fine dust, pollen, and other air pollutants, making it ideal for drivers who value a long service life and low maintenance.
Hengst, an established supplier to the automotive industry, has been supplying high-quality filter solutions to numerous vehicle manufacturers for decades and is one of the leading brands in the field of cabin air filters. The Hengst Filter E998LB epitomises German engineering and premium quality direct from the original equipment manufacturer.
Advantages
Biofunctional filtration at a high level
Maximum separation efficiency for the healthiest air
Original equipment quality from Hengst
Disadvantages
Higher price in the mid-range segment
Limited availability depending on vehicle model
Clean air in the vehicle is crucial for health, concentration, and well-being. The biofunctional filter offers maximum separation efficiency and combines several modern filtration technologies in one product. This removes pollen, dust, fine dust, harmful gases, and unpleasant odours from the cabin air particularly efficiently. Special coatings provide additional antibacterial protection and a hygienic indoor climate, even in heavily polluted cities.
This filter is the ideal choice for anyone who relies on premium quality from the original equipment manufacturer – for maximum safety, a long service life, and maximum driving comfort.
Specification
Value
Filter design
Biofunctional
Length
288 mm
Width
213 mm
Height
58 mm
Item number
E998LB
EAN
4030776087550
Reasons to buy and key features
Biofunctional technology
Maximum separation efficiency for best air quality
Large filter surface for a long service life
OEM quality from Hengst Filter
Tip from AUTODOC specialists: When looking for the right filter, you should pay attention to the filter design. Activated charcoal cabin air filters offer significantly better protection than simple pollen filters and cost only a few euro more. The investment is particularly worthwhile for city drivers and allergy sufferers.
Types of cabin air filters
Choosing the right type of filter depends on your requirements and budget. Here is a comparison of the three main types:
Filter type
Advantages
Disadvantages
Price
Pollen filter
Inexpensive, sufficient for basic protection, filters pollen and coarse dust
No odour filtration, less fine dust separation, shorter service life
€5–10
Activated carbon filter
Eliminates odours and gases, good fine dust filtration, longer service life
Slightly more expensive than pollen filters
€10–20
Premium/biofunctional
Maximum protection (NOx, PM 2.5, bacteria), antibacterial effect, anti-allergic
Highest price, not available for all cars
€15–30
Pollen filters are suitable for drivers without allergies who mainly drive in rural areas. Activated carbon filters are the best choice for most drivers. Premium filters are worthwhile for allergy sufferers, people with respiratory diseases, or urban drivers.
Expert opinion: Which filter is the best?
After a comprehensive analysis of the technical features and customer reviews, a clear picture emerges:
Best all-rounder: The BOSCH 1 987 432 397 impresses with its outstanding price-performance ratio. With a rating of 9.6/10, it offers reliable protection against pollen, dust, bacteria, and unpleasant odours, and so is ideal for drivers without special requirements who are looking for quality at a fair price.
For allergy sufferers and health-conscious drivers: The MANN-FILTER FP 2939 with FreciousPlus technology guarantees almost 100% filtration of allergens, fine dust, and nitrogen oxides. The antibacterial and fungicidal effect also protects against mould and bacteria – perfect for anyone who places the highest demands on the air quality in their vehicle.
Budget-friendly solution: For price-conscious drivers, FEBI BILSTEIN 09446 or PURFLUX AH378 offer reliable basic protection. These pollen filters reliably trap dust and pollen and fulfil all basic requirements at a particularly low cost.
Premium protection for city drivers: Anyone who frequently drives in the city and is exposed to high levels of air pollution should invest in the MEYLE premium filter with NOx absorption. It filters pollutants effectively and ensures a noticeably healthy cabin climate.
Filtration of interior air is not a luxury, but an investment in health and well-being. With the right filter, you and your family can enjoy fresh, clean air free from pollutants, pollen, and bacteria.
All the filters presented are in stock at AUTODOC and can be delivered within a few days. As a partner to over 8.4 million customers in 27 European countries, we offer reliable quality and service. Our detailed installation instructions and videos will help you to change your cabin air filter yourself so you can enjoy health and comfort in your car without any complications.
Reviews - 47
Parts Details
Filter type: Activated Carbon Filter
Length [mm]: 268
Width [mm]: 222
Height: 21
Quantity:
1
Basic version (Art. No.):
1 987 432 188
Highly efficient version with active carbon (Art. No.):
0 986 628 514
Choosing the right brand guarantees quality and durability. Here are the top manufacturers:
Cabin air filters from Bosch: World market leader with over 130 years of experience, offers reliable filtration in all price classes for almost all vehicle models.
Cabin air filters from Mann: Premium brand, original equipment manufacturer for well-known vehicle manufacturers known for innovative FreciousPlus technology.
Cabin air filters from Hengst: German quality manufacturer, supplies OEM parts to the automotive industry, offers biofunctional filters at the highest level.
Cabin air filters from MEYLE: Traditional brand specialising in premium filters with NOx absorption and anti-allergic properties.
At AUTODOC you will find over 6.7 million parts from around 2,500 brands. The selection of cabin air filters includes all the manufacturers mentioned with fast delivery throughout Europe.
Popular cabin air filters by car brand
Every car brand has its own requirements for cabin air filters – from size and material to filter performance.
Pollen filters for VW: Golf, Passat, Polo – perfectly matched filters provide fresh air, retain pollen and fine dust, and are easy to change.
Pollen filters for BMW: 3 Series, 5 Series, X models – premium filters with high separation efficiency for allergy sufferers and health-conscious drivers.
Pollen filters for Mercedes-Benz: A-Class, C-Class, E-Class – biofunctional filters for clean air and maximum comfort, even in heavy city traffic.
Pollen filters for Audi: A3, A4, A6 – cabin air filters with activated carbon with a precise fit that reduces odours and ensures a pleasant interior climate.
Pollen filters for Opel: Astra, Corsa, Insignia – reliable protection against pollen and dust, ideal for drivers who change their filter regularly.
Pollen filters for Ford: Focus, Fiesta, Kuga – long-life filters for consistent air quality, even over long distances or with high dust levels.
Pollen filters for Renault: Clio, Megane, Scénic – filters specially developed for French vehicles that reliably filter out pollutants.
Pollen filters for Fiat: 500, Panda, Tipo – compact filter solutions with high efficiency for fresh air in Italian small cars and compact models.
The right choice depends on the vehicle model and year of manufacture. You can find the right filter for your car in our shop by entering the vehicle data.
Frequently asked questions about cabin air filters
Are all cabin air filters of the same quality?
Not all cabin air filters are the same. Premium filters offer up to 99% particle filtration, while simple pollen filters often only retain coarse dust. When it comes to filtering out viruses, allergens, and fine dust, original brand filters clearly outperform no-name products – for healthy air, more comfort and maximum safety indoors.
Which filters are the best for my car?
Cabin air filter – with or without activated carbon? Our recommendations are based on your driving profile: Activated charcoal filters are ideal for city drivers, as they are particularly effective at trapping pollutants, exhaust fumes, and odours. Standard pollen filters reliably fulfil the requirements of rural drivers and ensure clean air away from heavily polluted roads. Filters with an antibacterial coating offer additional protection against germs and contribute to a hygienic interior climate – for healthy air on every journey.
Which cabin air filter is better, activated carbon or antibacterial?
Both technologies improve the air quality in the vehicle: Activated carbon filters trap harmful gases and unpleasant odours, while antibacterial filters prevent the development of bacteria and viruses. Premium filters combine both advantages in one product and thus ensure the cleanest possible air. However, the most important thing is to change the filter regularly, as this is the only way to keep the air in the interior healthy and hygienic in the long term.
How often does the cabin air filter in a car need to be changed?
What are the consequences of not changing the cabin air filter?
A dirty cabin air filter impairs the air quality in the vehicle: Pollen, dust, fine dust, bacteria, and mould can enter the cabin unhindered and affect the health of the driver and passengers. Allergy sufferers and sensitive people in particular quickly feel the consequences in the form of irritation or breathing difficulties. A clean filter is also crucial from a technical point of view: It relieves the air conditioning system, ensures optimum performance, and prevents odours.
A useful video on this topic:
How to change the pollen filter in your car
AUTODOC Bestsellers: parts at a good price
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Reviews - 21
Parts Details
Filter type: Activated Carbon Filter
Required quantity:
2
Length [mm]: 320
Width [mm]: 173
Height: 31
Basic version (Art. No.):
CU 3139
Highly efficient version with active carbon (Art. No.):
FP 3139
EU Product Safety Regulation (GPSR):
IEC 60417-6183 mechanical expertise required
Filter type: Activated Carbon Filter, with antibacterial action, Particle Separation Rate >98% for 2.5µm (fine matter), with anti-allergic effect, with antiviral effect, with fungicidal effect
Length [mm]: 243
Width [mm]: 158
Height: 30
Quantity:
1
Basic version (Art. No.):
1 987 435 172
Version with active carbon (Art. No.):
1 987 435 569
Alexandru’s passion for cars began at age 10 when he helped his father repaint a Golf 1. He was one of the very first technical experts in automotive parts selection at AUTODOC. He's able to tackle complex questions about optics, body parts, cooling, engines, and exhaust systems. When off duty, he studies mechanical engineering, repairs cars, and shares his experiences with other car enthusiasts.
8 April 2026 (updated) 
