There's also a shortage of said tanks. https://www.latimes.com/california/story/2020-12-29/oxygen-supply-shortages-bedevil-hospitals-already-overwhelmed-by-cov

There's also a shortage of said tanks. https://www.latimes.com/california/story/2020-12-29/oxygen-supply-shortages-bedevil-hospitals-already-overwhelmed-by-covid-19-patients https://www.latimes.com/california/story/2020-12-29/oxygen-s...