File:Fse-oxygen-depletion-v2.svg

Fse-oxygen-depletion-v2.svg (SVG file, nominally 900 × 600 pixels, file size: 12 KB)

Summary

Time to loss of consciousness for a person at rest against the oxygen concentration, calculated with the SFPE Handbook equation; the solid part covers the range of the underlying data. Based on Purser (2002), p. 2-107.

Original vector illustration for Oxygen depletion, level 2 Intermediate.

Source basis: Purser (2002), p. 2-107, Equation 12 and Figure 2-6.17 (data range 3.9 to 9.6 % sea-level equivalent); new chart, do not copy Figure 2-6.17.
Alt text: Curve of time to loss of consciousness against oxygen concentration, rising from under 3 minutes at 7.8 per cent to about 28 minutes at 12 per cent.

Licensing

New drawing by Fire Safety Academy. © Fire Safety Academy.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	17:12, 2 November 2026		900 × 600 (12 KB)	Lisa (talk \| contribs)	Watermark: Fire Safety Academy logo icon, 70 px, 45 % opacity

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Oxygen depletion

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Short title	Time to loss of consciousness for a person at rest against the oxygen concentration, calculated with the SFPE Handbook equation; the solid part covers the range of the underlying data. Based on Purser (2002), p. 2-107.
Image title	Curve of time to loss of consciousness against oxygen concentration, rising from under 3 minutes at 7.8 per cent to about 28 minutes at 12 per cent. Source basis: Purser (2002), p. 2-107, Equation 12 and Figure 2-6.17 (data range 3.9 to 9.6 % sea-level equivalent); new chart, do not copy Figure 2-6.17.
Width	900
Height	600