Ahlstrom FiltEV®

Ahlstrom FiltEV®

Global leader in sustainable and innovative fiber-based solutions
Strategic supplier to the automotive industry for 50+ years
Committed to meet future industry challenges
Ahlstrom FiltEV®
High performance filtration materials for Electric Vehicles

Ahlstrom FiltEV® is a new, comprehensive Platform of High Performance Filtration Materials for Battery Electric Vehicles.  It includes solutions for cabin air, transmission and battery cooling.

The portfolio is based on proprietary three-layer wetlaid technology and offers low pressure drop with high dust holding capacity and good mechanical resistance.  In addition, we have developed glass microfiber based solutions for battery electric vehicles. 






Cabin air filtration - Pure air for passengers

Cabin air quality is an increasingly important factor in the design of the new generations of vehicles. By filtering particles, microorganisms and harmful gases, air filters create a healthier cabin environment and improve the driving comfort.

Ahlstrom provides a reliable range of high performance media for cabin air filters in electric vehicles, meeting the most demanding requirements:

Particulate portfolio protecting against coarse, fine and ultrafine particles, including bacteria and viruses

Carbon portfolio combining removal of particles and gases for an increased level of protection 

The benefits include reliable filtration efficiency, up to HEPA level, optimal gas adsorption and excellent pleatability delivering highest converting efficiency.



Transmission filtration - Enhanced protection of the drivetrain

The cleanliness of the oil is an increasingly important factor in the performance, reliability and life time of the modern transmission systems and the new propulsion solutions for electric vehicles.

We provide a complete range of high performance media for suction and pressure transmission filters which meet OEM requirements:

  • Premium glass microfiber media with optional protective scrims, an ideal choice for high efficiency filtration solutions
  • Proprietary full synthetic 3-layer media with excellent durability and a wide range of efficiency covering most filtration requirements
  • New proprietary DLS Transmission is a one-step dual layer wetlaid manufacturing process combining enhanced lifetime and excellent converting performances.


The benefits include highest filtration performance, extreme durability and superior dust holding capacity as well as state-of-the art laminating capabilities. New expanded portfolio includes optimized processing for easy-to-pleat media.     



Battery cooling fluids filtration - Reliable shielding of the thermal management system

Effectiveness and lifetime of battery pack, fuel cell units and e-motors in electric vehicles highly depends on the ability to keep them in a narrow temperature window whatever the conditions of use. 

We provide a wide range of high performance filtration media for cooling air and liquids which guarantees a smooth and safe operation of the thermal management unit:

High permeability air filtration media preventing wear and clogging of the system by particles

Proprietary full synthetic 3-layer media with a wide range of efficiency covering most cooling oil filtration requirements


The benefits include the highest filtration performance, extreme durability and superior dust holding capacity.



For further inquiries, please contact us at:


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