9 kit of electronic components comprised of an oxygen sensor, sound attenuator, air separation and delivery unit, automatic controller, barometric pressure sensor, temperature sensor, humidity sensor, ventilation fan, and compatible tent, for use with a tent; kit of electronic components comprised of a handheld oxygen meter, sound attenuator, fingertip pulse oximeter reader, air separation and delivery unit, and compatible tent, for use with a tent; kit of electronic components comprised of an oxygen sensor, automatic controller, barometric pressure sensor, temperature sensor, humidity sensor, and ventilation fan, for use with a tent