Do what???
"THE RAS system is recirculating, not closed", and O2, which occurs in nature as well, has a very short half life and would dissipate in such a system. "
Seriously???? LOL
"THE RAS system is recirculating, not closed, and O2, which occurs in nature as well, has a very short half life and would dissipate in such a system."
LOLOLOL. Please tell me more!!!!
"THE RAS system is recirculating, not closed, and O2, which occurs in nature as well, has a very short half life and would dissipate in such a system. "
So how do the SHMP breath if the O2 dissipates so fast????