CALL OUR TEAM NOW 0800 612 6537 Also FREE from UK mobiles

Smoke, Fire & Gas Detection FAQs

What level of carbon monoxide is dangerous?

Different levels of carbon monoxide (CO) affect the body in  different ways. Exposure to large amounts of CO can cause sudden death, and prolonged exposure to low levels of carbon monoxide can have adverse effects on the body and brain.

This table shows the effects of different levels of exposure to carbon monoxide.


Concentration of CO in the air Implications of Exposure
10 parts per million (ppm) Threshold at which prolonged exposure can have adverse effects on the body and brain. This can include neuropsychological and cardiovascular issues.
50 parts per million (ppm) Safety level as specified by the Health and Safety Executive for a maximum of 30 minutes.
200 PPM Slight headache within 2-3 hours.
400 PPM Frontal headache within 1-2 hours, becoming widespread in 3 hours.
800 PPM Dizziness, nausea, convulsions within 45 minutes, insensible in 2 hours.


See our carbon monoxide information page for more details.

View all smoke, fire & gas detection FAQs


 

Reviewed: 14/09/2023 (doc:536 V1.0). Our articles are reviewed regularly. However, any changes made to standards or legislation following the review date will not have been considered. Please note that we provide abridged, easy-to-understand guidance. To make detailed decisions about your fire safety provisions, you might require further advice or need to consult the full standards and legislation.

Settings

Colour Scheme

Light
Dark

Pricing Display

Inc VAT
Ex VAT

Cookies

By continuing to browse this site you agree to the use of cookies.