Up to Twice the Filter LifeMost Advanced NanoFiber Technology The NanoFiber surface stops submicron particles from entering and becoming embedded into the media beneath the NanoFiberMERV 15 Filtration Efficiency Best in the IndustryReduced Dust Collector Operational CostsLower Operational Mass EmmisionsLess Pulse Cleaning Dust is easily pulsed off of the NanoFiber media because it remains on the surfaceIndustrys Best Surface Loading Technology Enhances dust cake release, leading to longer filter lifeHighest Quality Pleated Media 99.9% Efficiency .3 to .5 MicronDeltaMAXX NanoFiber Dust Collector Cartridge Filters have a very fine surface layer of synthetic fibers that blocks the particulate before it embeds deep into the media.DeltaMAXX Dust Collector Cartridge Filters are manufactured for all makes and models of cartridge dust collectors.