Oxygen concentrators are very old technology. What is new, and what we will have in a few months, I hope, is that ability to use this same renewable energy system to provide and produce oxygen on site. Zeolite -- it's not new -- zeolite removes nitrogen from air and nitrogen is 78 percent of air.
制氧机是很老的技术，新的是 并且我希望几个月后能拥有的 是使用可再生能源系统的能力 来现场提供制造氧气。沸石--这并不新奇-- 沸石能去掉空气中的氮气，而氮气占空气的78%。