Donaldson's Filter Media Technology

Donaldson filter media is made up of specially formulated fibres designed to trap contaminants such as dust, dirt and soot. The media is pleated to maximise the filter surface area and pleated between rigid liners to provide stability and support. A filter seal is applied or built in to the open end of the filter to prevent dirty air from bypassing the filter.

Donaldson has developed an extensive range of media ensuring the delivery of the best protection for applications no matter what the operating condition.

Ultra-Web® & SPIDER-WEB® nanofibre technology


Donaldson is a world leader in the development of high performance proprietary fine-fibre technology. Patented EON nanofibre is bonded to varying filter substrates ranging from cellulose to Synthetic thus creating filter media which offers the highest level of filtration efficiency and protection.

Nanofibre gives filter media a web-like filtering layer which creates a regulated pore-size thus delivering optimal sub-micron filtering efficiency.  Other benefits include greater contaminant holding ability, ensuring longer filter life and greater value for money.

Synteq™ Media Technology


When an application requires higher efficiency filtration than cellulose filter media can deliver, Donaldson uses synthetic media technology.

Donaldson Synteq™ media technology uses a wire screen backing that is pleated with the media for superior strength. Synteq™ media captures more and smaller contaminants then cellulose media thus providing greater protection for your application.  

PowerCore™ Filtration Technology


PowerCore™ filters, using patented Ultra-Web® nanofibre filtration are up to 10 times as efficient, and are more compact at a given performance level than standard pleated cellulose filters.

The filter media is formed into flutes. These flutes are layered to give tight, rugged structure to the filter allowing air to enter through an open flute forcing it to exit out an adjacent flute.

The design of the internationally patented housings, filters and filter media is the key to Donaldson PowerCore filtration technology.