Product Detail Electronic air cleaner for large commercial spaces installs flush into drop ceilings Prefilter and 2 heavy-duty commercial cells remove for cleaning; safety interlock switch Coanda airflow distribution; 3-speed motor-driven fan; 1030 cfm on high speed Solid-state self-regulating power supply; inlet-outlet grille; exhaust air vent; LED indicators Measures 46 by 22-1/2 by 13-1/2 inches; 1-year limited warranty . The "Honeywell F57A1044 Commercial Ceiling-Flush-Mounted Self-Contained Electronic Air Cleaner with 2 Cells" is best product for you. We recommended Honeywell F57A1044 Commercial Ceiling-Flush-Mounted Self-Contained Electronic Air Cleaner with 2 Cells