I believe the beauty of the EDEN unit is that the more of them that are needed, the lower the price per unit should go with mass production techniques. The question may be, just how many units can be packed into a given size cleanroom. I suspect that with demand, we'll find that these units can be stacked in properly designed racks that are built somewhat like the environmental racks used to house electronic equipment. With such racks, cleanrooms may support far more units than if units are not stacked.
Certainly more cleanrooms will be required, but I believe in many facilities, things like cryogenics, fill, etc. already is adequate to support substantial growth in capacity with only additional cleanrooms needed. I.E. the more vaccine that's needed, the lower the cost of expanding to provide it.
Gary
Bullish