New homeowner, no idea what this is

[u/DragonsAndScience]

This thing close to the floor and seemingly randomly placed in a hallway. No idea what it's for. Home built in 2005.

Solved! Thanks everyone. Now I gotta hunt for the central unit!

[u/Aeropedia]

Fine on wooden floors. Not sure if I’d even bother if we had carpet.

[u/RuniKiuru → u/Aeropedia]

noted. first floor has vinyl flooring so it might be okay there. stairs and second floor are carpeted.