"AMSOIL Ea Air Filters represent a major breakthrough in filtration technology. The revolutionary nanofiber technology used in AMSOIL Ea Filters captures more dirt, holds more dirt and allows better air flow than conventional air filters. AMSOIL Ea Filters improve engine performance and help engines last longer.
Absolute Efficiency
AMSOIL Ea Air Filters are the most efficient filters available to the car/light truck market. Ea Air Filters’ synthetic nanofiber media removes 5 times more dust than traditional cellulose filter media alone and 50 times more dust than wet gauze filter media. AMSOIL Ea Air Filters have a service life of 100,000 miles or four years, whichever comes first.
Better Air Flow
AMSOIL Ea Air Filters allow more airflow than filters that use cellulose media alone. Cellulose fibers are larger than nanofibers, and have larger spaces between the fibers, causing contaminants to load in the depth of the media and plug the airflow path, which results in higher restriction and less capacity. The synthetic nanofibers in EaA Filter media have submicron diameters and small interfiber spaces, which result in more contaminants being captured on the surface of the media and lower restriction.
More Capacity
AMSOIL Ea Air Filters hold up to two and a half times more contaminants than cellulose air filters. Since the nanofibers in the media are so small there are more pores per square inch, allowing for higher dirt-holding capacity and lower pressure drop when compared to cellulose filter media alone. Thinner media fibers produce more uniform pore size distribution, improving the filter’s overall quality and ability to capture and retain particles.
Testing shows that Ea Air Filters hold 15 times more contaminants than a wet gauze type filter."
Of course this is a one-sided conversation... I really can't be bothered to mess with the oil myself to be perfectly honest..
Really though, I've been told this is the best filter and works out to be the least expensive (not that that makes a difference for my baby). 
