Will life support systems require consumables that must be restocked?

I think we already mentioned that. So obviously you have the filters for the air, for the scrubbing of the CO2 from the air. So you need a special material for that that will take care of it. So that's one. We'll also have some for heating up the rooms. Totally a bunch. It's going to be like a real system inside of the ship that you can put things in and make it work.