Product: Delta BreezGreenBuilder GBR80H 80 CFM Exhaust Bath Fan with Adjustable Humidity Sensor and Speed Control
Brand: DELTA ELECTRONICS (AMERICAS) LTD.
Color: With Dual Speed & Humidity Sensor
Quiet operation at 0.8 sones
An indicator light underneath the grille assures you that this quiet fan is running
Adjustable humidity set points between ~50% to ~80% RH
When humidity is above the user-adjustable set-point, fan runs at full speed (80 CFM). When humidity is below the set-point, the fan runs continuously at a pre-set lower level (0 or 50 CFM)
ENERGY STAR Most Efficient for efficient cost-saving operation

Search query: quiet bathroom exhaust fan drop ceiling
Relevance: Exact