The Luber-finer MXM Nano Tech Air Filter offers 99.99 percent overall efficiency, according to the company, and remove airborne contaminants to protect heavy duty engines. Unlike conventional cellulose filters that can have large gaps between the cellulose fibers, Luber-finer's Nano Tech technology is designed to keep contaminants at the surface of the filter media and away from the engine. The MXM Nano Tech Air Filter meets OEM warranty specifications and provides twice the dust-holding capacity of cellulose media, the company says. The initial product offering includes 35 models covering popular on-road and off-road applications.