Lambro Ind. 289W Dryer Vent Closure, Model: Lambro Ind. 289W Dryer Vent Closure, Tools & Outdoor Store Stops drafts, odors, noise, toxins, insects from entering house. Save $$$ on energy bills. MADE IN U.S.A. Energy efficient product - qualifies for tax credits. Recommended by the DOE to stop drafts and save energy.