Listen to Outside Building Ventilation Units online. Outside Building Ventilation Units is an English language song and is sung by Sleep Baby Sleep, Deep Clarity, Relaxation Meditation Yoga Music, Relajacion Conjunto and Sleep and Dream. Outside Building Ventilation Units, from the album Appliances and other Household Ambiances (Loopable Audio for Ambiance, Meditation, Insomnia, and Restless Children), was released in the year 2017. The duration of the song is 1:22. Download English songs online from JioSaavn.