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What are considered dangerous levels of carbon monoxide?


Last Updated: 11/26/2013
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Even small amounts of carbon monoxide can pose significant health risks over time, so it really depends on both the CO concentration and the time of exposure. Below is a chart showing how varying CO levels can affect human health.


(ppm = parts per million)

35 ppm: 6-8 hours of exposure can result in headaches
100 ppm: 2-3 hours of exposure can result in headaches and dizziness
200 ppm: 2-3 hours of exposure can cause headaches and clouded judgment
400 ppm: 2-3 hours of exposure can lead to more severe headaches
800 ppm: Nausea and dizziness in less than an hour / unconsciousness in under 2 hours
1,600 ppm: Severe headaches, increased heart rate, and nausea in under 20 minutes / possible death in under 2 hours
3,200 ppm: Strong headaches, nausea, and increased heart rate in less than 10 minutes / death is possible in less than 30 minutes
6,400 ppm: Headaches, nausea, dizziness in under two minutes / death is possible within 20 minutes
12,800 ppm: Loss of consciousness in 2 breaths / Death can occur in as little as 3 minutes


As you can tell from these statistics, carbon monoxide is a serious threat. Being odorless, tasteless, and invisible to the naked eye make CO even that much more dangerous. That's why it's imperative that people outfit their homes with either a stand-alone CO detector, like the CM-6, or a monitored detector, like the 5800CO.


Similar Products:
GE Security 260-CO Carbon Monoxide Detector
System Sensor CO1224TR Round CO Detector
Macurco CM-E1 Carbon Monoxide Fixed Gas Detector




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