The HEPA Air Filter Cartridge with Diffuser Cap is a white pleated filter designed for use in air purifiers. The filter is EPA registered and features true HEPA filtration technology, making it effective at removing airborne contaminants. Made with a plastic filter frame and paper filter media, this reusable/washable filter is ideal for maintaining clean and healthy air in your living or work space. Manufactured in China, this filter cartridge combines quality construction with efficient filtration to provide a reliable solution for improving indoor air quality.