Honeywell True HEPA Air Purifier Filter is designed to capture up to 99.97% of airborne particles as small as 0.3 microns, ensuring cleaner and healthier air in your home or office. This high-quality filter is compatible with Honeywell True HEPA console air purifier models including the HPA090 series, HPA100 series, HPA200 series, and HPA300 series. For optimal performance, it is to replace the filter once a year. The filter measures 6.5 inches wide by 10.25 inches long, making it a fit for the specified models. Model Number: