"Hundreds of ventilators owned by New York City as part of its emergency stockpile were auctioned off at least five years ago under the administration of Mayor Bill de Blasio, according to reports."

The Key take-a-way is that they were not replaced with newer non-discontinued models.

https://www.theepochtimes.com/nyc-auctioned-off-stockpiled-ventilators-meant-for-a-pandemic-report_3303124.html