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. |
