Bathroom Fan Discharge Direction Horizontal Duct Diameter 4 in Duct Shape Round Housing Material Steel Heater Without Heater Includes Fan Assembly Grille Mounting Location Ceiling Exhaust Airflow @ 0.100 in SP 80 cfm Exhaust Airflow @ 0.000 in SP 89 cfm Maximum Noise Level 1.2 sones Noise Level @ 0.100 in SP @ 5 ft 1.2 sones Maximum Coverage Area 75 sq ft Number of Speeds 1 Overall Depth 9 1/4 in Overall Height 5 3/4 in Overall Width 10 in Lighted Without Light Phase 1