The world faces a lack of oxygen concentrators as the quantity of worldwide covid-19 cases approaches 10 million, the World Health Organization (WHO) head said on Wednesday. Cases are ascending by around one million every week, pushing oxygen request to 88,000 huge chambers for each day, or 620,000 cubic meters of oxygen, WHO chief general Tedros Adhanom Ghebreyesus told a news gathering. He said 80% of the market is claimed by a couple of suppliers, and request is surpassing gracefully. The unexpected ascent in cases has made a deficiency of oxygen concentrators expected to help breathing of covid-19 patients experiencing respiratory trouble. The UN wellbeing office has bought 14,000 oxygen concentrators from makers and plans to send them to 120 nations in coming weeks, Adhanom Ghebreyesus said. A further 170,000 concentrators, esteemed at $100 million, will be possibly accessible throughout the following a half year.