Introducing the Sharp HEPA Filter for the FX-J50J-W Air Purifier. This high-quality filter is designed to effectively trap 99.97% of microscopic particles in the air, as small as 0.3 micron. With its advanced filtration technology, it ensures that you and your loved ones breathe in clean and purified air. The filter has a long lifespan, lasting up to two years, which means you won't have to worry about frequent replacements. It is a reliable and durable choice for maintaining a healthy indoor environment. Keep your air purifier running at its best with the Sharp HEPA Filter.