What Would the World Look Like Without Everflo Q (靜音型) 5L 家用型氧氣機-Philips Respironics?

https://milkyway.cs.rpi.edu/milkyway/show_user.php?userid=6562678

Everflo Q (靜音型) 5L 家用型氧氣機-Philips Respironics 飛利浦 偉康