Designed Exclusively: Manufactured under the strictest quality standards for maintaining your air purifier peak performance, keeping the air inside your home, apartment, school, or office clean. Filter Dimension 11.81"x 7.52"x 7.52". CHECK your air purifier model number before purchase. Cost-Effective Price: 2 units value pack save much cost for your all year round air cleaning need. Higher level filtration performance for long time using. You may need to replace your filter earlier or later depending on how often you use your air purifier. Using an old filter lowers your air purifier’s efficiency. Genuine Filtration Technology : A higher grade material was used with 360° Filtration, Captures 99.97% of particles down to 0.3 microns in diameter. Improve your indoor air quality to breath and sleep easier, avoid sniffles and sneezing. Trap Household Odors: The activated carbon filter can efficiently absorbs unwanted odors. You'll notice the difference immediately in the air of your home. Environmentally friendly than filters that require more frequent replacement. 100% Quality Guarantee. If you have questions or problems with your Ulrempart filter at any time don’t hesitate to give us a call or E-mail, Ulrempart customer support team are here to help!