https://techcrunch.com/2020/03/20/spacex-and-tesla-are-working-on-ventilators-elon-musk-says/ > Elon Musk tweeted Friday that Tesla and SpaceX employees are “working on ventilators” even though he doesn’t believe they will be needed. > His confirmation on Twitter that both of the companies he leads are working on ventilators comes a day after New York City Mayor Bill de Blasio  made a direct plea to Musk to help alleviate a shortage at hospitals gearing up to combat COVID-19.