: 1.0 Sone (Roughly equivalent to the sound of a quiet refrigerator).
: A 220 CFM fan can clear steam from a large master bath in minutes, preventing mold and mildew growth on walls and ceilings. sone220 top
: Ensure you use 6-inch ducting. Using a 4-inch reducer will significantly increase noise and reduce the actual CFM. the fan is barely audible
: Some users confuse this with Soneven , a popular brand known for athletic dresses and golf tops. sone220 top
: At 1.0 Sone, the fan is barely audible, making it perfect for "spa-like" bathroom environments or master suites where loud fans might wake a sleeping partner.