Forget about renting nitrogen tanks — laboratory applications aren’t on the same level as buying helium for a kid’s birthday balloons. Critical operations can’t wait for resupply. What happens when production stops because the gas supply has depleted, or when valuable experiments or products are ruined because of moisture exposure? As far as the old-fashioned nitrogen delivery via tank and truck, why wait to have crucial laboratory supplies left on the cleanroom stoop like old milk bottles? How much time should personnel have to spend refilling each tank? And where in the space-starved facility should the bulky supplies wait for use?