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Donaldson Endurance™
Air Filters with exclusive nanofiber technology
offer longer engine life, longer filter life,
initial efficiency up to 99.99 percent and five
times more capacity.
The nanofiber
technology causes submicron contaminants to be
held on the surface layer of smaller fibers.
This filtration characteristic is only possible
with this new type of air filtration technology.
In on-highway applications, where the
contaminant is primarily submicron in size,
Donaldson Endurance filters cause less
restriction than conventional filters with
cellulose media. The smaller interfiber spaces
of nanofiber technology have a higher efficiency
and capture more contaminant.
The following
illustration may help visualize these phenomena:
Imagine two filters, a chain link fence and a
mosquito net, with a tennis ball being a dirt
particle. As you may have observed, a tennis
ball will fit quite nicely into an opening of a
chain link fence, but will obstruct the hole
almost 100%. Now imaging the same tennis ball
covering a mosquito net. The tennis ball, at the
point of contact with the netting, will obstruct
much less filter area than the chain link fence
example. In fact, air will flow around the
tennis ball all the way to the point of contact.
It will take many more particles to obstruct the
netting surface area than the chain link fence.
Donaldson
Endurance™ air filters are guaranteed to deliver
twice the miles between change intervals over
cellulose air filters for on-highway
applications or customers receive a new filter
at no charge.
Efficiency Graph
Capacity Graph
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