All about


All about


Filtration products

General information

To give the best possible driving experience, good cabin air quality is just as important as an efficient, high-performing engine. Car filters and filtration systems work hard to optimize the cabin environment, preventing airborne particles such as dust, pollutants, pollens, and other allergens from entering the cabin and taking the driver’s attention away from the road. In particular, they prevent particulates from entering the HVAC (heating, ventilation, and air conditioning) system. Without a properly functioning cabin air filter, the ventilation system won’t receive the continuous flow of clean air that it needs.

DENSO’s cabin filtration systems have been developed to OE quality standards with advanced technologies, easy-fit design, and long-life efficiency. By filtering and trapping potentially irritating and hazardous particles before they enter the car's cabin, our filter systems give every driver a clean and temperate environment, allowing them to drive with complete peace of mind.

Installation and fault finding

Incorrect installation or faults in filtration systems are a hazard to driver and passenger health as well as to vehicle performance. To avoid these risks, take a look at the information in our take a look at the information about filtration systems in our download section.

Catalogues and marketing materials

To find out more about Filtration browse the Downloads Area section. Click here.


Are there different types of car air filters?
DENSO offers two types of high quality cabin air filters: 1. PARTICLE FILTERS DENSO Particle Filters feature high quality, non-woven fabric to remove major air pollutants including dust, soot, lead, sulphates and exhaust particles. The filter fabric is so effective that it can remove particles just a few tenths of a micron in size – ensuring a safer, more pleasant in-car environment. 2. COMBINATION FILTERS DENSO’s Combination Filters use high quality, non-woven fabric enhanced by an added layer of activated charcoal. This highly effective technology removes 25% more major pollutants from the air than standard Particle Filters – as well as eliminating unpleasant, even harmful, gases and smells.
How often should you replace your car air filter?
To keep cabin air fresh, clean and safe to breath, it is important that Cabin Air Filters are changed every 10,000 – 15,000 km, once a year, or as specified by the vehicle manufacturer.