Broan 8"Automatic Make-Up Air Damper – MD8T|Dispositif d'apport d'air automatique Broan de 8 po – MD8T|MD8TDAMP hidden Created to fit twin mattresses

Created to fit twin mattresses up to 18 inches high

staining and scratching

Always check your existing hood fan’s installation instructions for proper installation height prior to use

And with a sleek

but it also works quietly at 0

Broan 8"Automatic Make-Up Air Damper – MD8T|Dispositif d'apport d'air automatique Broan de 8 po – MD8T|MD8TDAMP hidden Created to fit twin mattressesImprove your ventilation efficiency with this automatic make up air damper from Broan. The air damper provides a controlled point for fresh, outdoor air to enter your home as air is exhausted from the building by a compatible BEST, NuTone or Broan range hood. The damper is designed to only open while your range hood is on.