If any of them have half a brain, they are maintaining their regular prices and ramping up production and stockpiling them for the inevitable demand in a few more weeks.
This is easily resolved by setting the price of ventilators as part of Title IV of the Defense Production Act (I would imagine)
https://fas.org/sgp/crs/natsec/RS20587.pdf
> ramping up production and stockpiling them for the inevitable demand in a few more weeks.
This still prevents future prices from increasing, which is good thing.
In fairness, if your hourly workers are working overtime to "ramp up production" you need to pay them overtime of 1.5x (In China, it can be double or triple (forgot which one) since their workers were working during Chinese New Year) . Their costs increases and should be able to reasonable increase price to accommodate.
Only if they actually decide to drive prices down. There is zero indication this is happening.