HQRP Filter kit includes 2 washable and reusable pre-motor filters designed to help maintain airflow and protect the motor by capturing dust and debris before it reaches internal components. Compatible with Dirt Devil Lift & Go UD70300 / UD70300B and Dash UD70250 / UD70250B / UD70250BCA / UD70250BCD / UD70250BFD / UD70255 bagless upright vacuums; replacement for Dirt Devil F78 / F-78 pre-motor filter and replaces part number 440004273. The filter is located directly underneath the dirt cup assembly and is removed by pulling the tab from the dust bin, then inserting the replacement filter. For routine maintenance, rinse the filter under warm water until it is no longer visibly dirty and wash about every 30 days to help keep peak vacuum performance. Let the filter air-dry for at least 24 hours and ensure it is completely dry before reinstalling. Built for high durability, the filter typically needs replacement every 2-3 years depending on usage, with more frequent changes helpful in homes with asthma or allergies. Disclaimer: This is not an Original Equipment Manufacturer (OEM) product, HQRP branded product is a replacement. All brand names and logos are registered trademarks of their respective owners. Any use of the brand names or model designations for this product are made solely for purposes of demonstrating compatibility.