The OEM Carrier HEPA Air Purifier XL Air Filter, model RMAPFIL-HXL, is a high-quality cartridge filter designed for air purifiers. With a filter life of 6-12 months, this filter utilizes true HEPA filtration technology to effectively remove particles from the air. Made with pre-filter, activated carbon, and HEPA filter media, this filter is ideal for improving indoor air quality in your home or office. This pack includes 1 filter, making it easy to ensure clean and fresh air circulation in your space.