NuTone 690NT is a general ventilating bathroom fan. It is designed to be installed in a fan housing that is marked "D-Housing" or "690" Series. The fan has a permanently lubricated motor and is designed for quiet and efficient operation. It is also easy to clean, with a removable grille that can be vacuumed.

The NuTone 690NT is a powerful fan that can move up to 90 cubic feet of air per minute (CFM). It is also very energy-efficient, using only 1.2 amps of electricity. The fan is designed to be used in bathrooms, but it can also be used in other small rooms, such as laundry rooms or mudrooms.