Inert gas asphyxiation are more uncomfortable in low-oxygen environments that result from inert gas exposure; however, the experience is still less aversive than CO exposure. A typical human breathes between 12 and 20 times per minute at a rate primarily influenced by carbon dioxide concentration, and thus pH, in the blood. With each breath, a volume of about 0.6 litres is exchanged from an active lung volume (tidal volume + functional residual capacity) of about 3 litres. Normal Earth atmosphere is about 78% nitrogen, 21% oxygen, and 1% argon, carbon dioxide, and other gases. After just two or three breaths of nitrogen, the
Gas-s-s-s and he only made one more movie before a twenty-year sabbatical. " A great deal of care went into what I was saying and how I was going to say it," he said of "Gas-s-s-s". "The finished picture does not evidently make all these points. It discourages me and so for a little while I prefer to step away ... Directing is very hard and very painful. Producing is easy. I can do it without really thinking about it." Corman did, however, go on to produce "Boxcar Bertha" for AIP. "Gas-s-s-s" found a fresh audience on late night television in