Comment by trhway

>the 120 liters ended up going outdoors and how much ended up inside. Helium expands about 750 times when it expands from a liquid to a gas, so that’s a lot of helium (90,000 m3 of gaseous He).

the math seems couple orders off - the 120l would make less than 900m3. The 90000m3 would be on the scale of the total volume of a multi-story hospital building.