GoKBNY 4-Pack AP303 AP304 Replacement Filter Compatible with DAYETTE AP303/AP304/AP305/AP405 Air Purifiers and FRESHDEW AP303/304 Air Purifiers

["【Compatible Model】--The filter is perfectly compatible with DAYETTE AP303/AP304/AP305/AP405 Air Purifiers and FRESHDEW AP303/304 Air Purifiers.","【3-Stage Filtration】--The filter provide 3 layers of defense to protect your family health. Including a fine primary filter, H13 true HEPA filter and high efficiency activated carbon filter.","【Life Time】--To keep your Air Purifier performing at it's best, we recommend replacing your unit's air filter every 3-4 months. (depending upon your usage and environment).","【Activated Carbon Filter】--Highly effective activated carbon can help reduce indoor odors from smoke, cooking and pet odors.","【Satisfactory Service】--If you have any questions, you can contact us at any time and we will guarantee to provide services to your satisfaction."]