A low yanayin zafi, CO2 yana da matsin gas. Tankuna dole ne a tsara su don yin tsayayya da canje-canje matsin lamba yayin yanayin zafi yayin guje wa canje-canje masu gudana tsakanin ruwa da gas. Kamar yadda zafin jiki ya tashi, matsin gas na co2 yana ƙaruwa, wanda ke haifar da nauyi mai matsi mai ƙarfi a kan tanki. Tsarin tanki na babban yanayin zafi yana buƙatar ƙarin la'akari da matsin lamba na jirgin sama na jirgin sama, gami da matsin lamba ikon bawuloli da aminci bawul.