In terms of filtration technology, yes, the LF14000NN is truly better than the older LF9009 or LF9070. The LF14000NN uses StrataPore™ + NanoNet™ filtration technology, which offers a higher filtration accuracy and captures particles sized 4–40 µm. The older LF9009 or LF9070 uses StrataPore™ technology, which captures particles sized 10–40 µm. While the LF14000NN is technically supe... https://joz-engine.com/is-the-lf14000nn-really-better-than-the-older-lf9009-or-lf9070/