Panasonic BDD-4

BDD-4 Product Description

Atmosphere backdraft dampers are manufactured with galvanized steel and can be mounted directly in the ventilation duct to ease the installation. The two blades have an independent hinge to prevent any malfunction. The dampers come with a gasket to ensure a quiet and sealed operation.

Features:

For use with Atmosphere Vortex Series In-line fans and Atmosphere Dryer Exhaust Duct Power Ventilators 
Neoprene damper seal minimizes leakage 
Requires 0.04 to 0.08 in. static pressure to open 
Simple installation in any position - entire assembly inserts into duct

Application:

To control airflow and prevent unwanted air from re-entering the ductwork.
To keep conditioned air inside and prevent outside air from coming in, control temperature and improve air quality the space.
To reduce energy costs by preventing conditioned air from escaping.
To prevent contaminated air from flowing back into a space when the fan is not running.
To be added as an accessory when replacing an in-line fan or dryer exhaust duct power ventilator that includes a back draft damper.

About Panasonic:

Panasonic Corporation of North America, based in Secaucus, NJ, is the principal North American subsidiary of Osaka, Japan-based Panasonic Corporation and the hub of its branding, marketing, sales, service, product development and R;D operations in the U.S. and Canada. For more than 50 years, Panasonic has delighted American consumers with innovations for the home and business.