Coway Airmega 250 TV Spot, 'Homealone Dog'

A curious dog follows its nose around a living room, snuffling around the coffee table, rumpling the throw rug, poking around the couch cushions and investigating the Coway air filtration system. Coway says that even if you are away from home, you want your "best friend" to breathe clean air, noting that its Airmega 250 uses triple-stage filtering to reduce or remove odor-causing and harmful contaminants.