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Carbon Monoxide (CO) Gas Safety Information


Key Characteristics. These are guidelines only – refer to published documents. OX-AN® cannot be held responsible in any way for the use of this data.

Technical Characteristics of Carbon Monoxide (CO)

Description:Carbon Monoxide is a product of – Incomplete combustion of carbon based materials – Diesel engines and detonated explosives. It is highly toxic, reducing the bloods ability to carry oxygen throughout the body.


Lighter than Air – Relative density 0.967

Explosive range – 12.5% – 74%

Risks:Headaches, dizziness, nausea, unconsciousness and death.
0 PPMDesirable Level
9 PPMMaximum indoor air quality level
30 PPMLong term exposure limit. Max. concentration for continuous exposure in any 8 hour period
200 PPMShort term exposure limit (15 Minute reference period) Slight Headache, tiredness, nausea after 2-3hrs
400 PPMFrontal headaches 1 to 2 hrs, life threatening after 3 hrs
800 PPMDizziness, nausea and convulsions within 45 minutes. Unconsciousness within 2 hours. Death in 2 to 3 hours
1,600 PPMHeadache, dizziness, nausea within 20 minutes. Can prove fatal within 1 hour
3,200 PPMHeadache, dizziness, nausea within 10 minutes. Can prove fatal within 30 minutes


Further information about carbon monoxide can be found here

Find information about about carbon dioxide here