Off_air -

While "off-air" is a media term, the composition and quality of the itself are critical to life. Air pollution - World Health Organization (WHO)

: "Off-air recording" refers to the process of capturing a broadcast directly as it is transmitted for later review or archival purposes. Environmental Context (The Science of Air) off_air

: A station is "off-air" when it ceases its normal broadcast schedule, whether due to a planned sign-off (common in older television eras), technical failure, or a mandated shutdown. While "off-air" is a media term, the composition