What is an acceptable ppm of CO?
The OSHA personal exposure limit (PEL) for CO is 50 parts per million (ppm). OSHA standards prohibit worker exposure to more than 50 parts of CO gas per million parts of air averaged during an 8-hour time period.
What is a good CO ppm reading?
Low level: 50 PPM and less. Mid level: Between 51 PPM and 100 PPM. High level: Greater than 101 PPM if no one is experiencing symptoms. Dangerous level: Greater than 101 PPM if someone is experiencing symptoms.
How many ppm of CO2 there are in a car exhaust?
Internal combustion gasoline engines produce extremely high carbon monoxide concentrations. Even a properly tuned gasoline engine, will produce more than 30,000 parts per million (ppm) of CO in the exhaust stream before the catalytic converter.
What is an unsafe level of CO?
As CO levels increase and remain above 70 ppm, symptoms become more noticeable and can include headache, fatigue and nausea. At sustained CO concentrations above ppm, disorientation, unconsciousness, and death are possible.
What is a good CO level?
0-9 ppm CO: no health risk; normal CO levels in air. 10-29 ppm CO: problems over long-term exposure; chronic problems such as headaches, nausea. 30-35 ppm CO: flu-like symptoms begin to develop, especially among the young and the elderly.
How much CO is lethal?
However, CO concentrations more than 1000 ppm (0.1%) cause unconsciousness, respiratory failure, and death if exposure is continued for 1 hour.
Does a carbon monoxide detector go off continuously?
CO alarm life span
The CO alarm will beep every 30 seconds or display ERR or END. If a CO alarm is at its end-of-life, replacing the battery will not stop the beep.