If nanofiltration is important, ask your filter suppliers “What is your E1?” That is short filter lingo for —what is the efficiency of your filter in the 0.3 to 1.0 micron particle size?
MERV ratings are exactly what they stand for—the Minimum Efficiency Reporting Value. The next question to ask is “What is your pressure drop?” The higher the pressure drop, the harder your system fan will have to work to deliver conditioned air. The harder the fan works, the more you pay for electricity.
As more and more companies develop and use nanotechnology in filtration, we expect filters with nanofibers, nanoparticles, and other nanomaterial to penetrate the market. We expect new nanotechnology integrated products to improve its performance in terms of particulate, odor, and toxic chemical filtration. Additionally, products are expected to become smaller, thinner, lighter, and have superior life cycle costs.