Efficient but quiet: Lead to great effects with a diameter of 4 inches, speed of 2930 RPM and 100 CFM air flow. A less than 40 dB noise level does not have any harm and will not disturb your work.
From the fan, a single exhaust duct exits through the roof. Each bathroom has its own switch and operates independently.
Inline fans are great in use ... Make sure that the whole muffler is air-tight. Step 7: Place the Duct and Connect The Inline Fan Exhaust We’re almost done. Now, take the duct and place it ...