This replacement filter is designed specifically Compatible with Electrolux Guardian air purifier and for Aerus Lux Guardian Air Filter. Featuring H13 True HEPA 4-stage filtration. Long-lasting and efficient, this filter lasts up to 6 months with regular use. It fits securely into place and is easy to install yourself. Keep your home's air fresh and clean between filter changes with this high-quality replacement. Disclaimer: This product is a generic item that is designed to replace the original part. Any brand names or logos are the registered trademarks of their respective owners. Any use of any brand name or model designation for this product is made solely for purposes of demonstrating compatibility.