Well Tom the atmosphere is about 60miles (surface to edge of space) or 316,800 feet. So I guess I have about 31,680,000,000 cu ft. I may need to get a few more EP600's to fill that space.

M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85