Heavy duty quiet operation.

Quiet long-life ball bearing motor.

Metal fan housing with rust-proof painting.

Thermal overload protection.

Built-in damper to prevent air-backdraft.

Halogen spot light for model AF50L1.

Duct diameter: 4’’ (100mm).

Certification: UL, CUL.

UL listed for use over a bathtub or shower with a GFCI circuit.