Product Detail Five year mechanical warranty. Five year pro-rated filter warranty. Hepa Efficiency: 99.97% at .03 microns|CADR: N/A|Coverage Area: 1500 sqft| Airflow: 400 CFM null Measures: 23.5 inches by 14.5 inches by 14.5 inches |Unit Weight: 45 pounds|Power Consumption: up to . The "Austin Air HealthMate Purifier" is best product for you. We recommended Austin Air HealthMate Purifier