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I have a Nighthawk carbon monoxide detector and what is a number to know so that i know it's dangerous and should get out? I know it goes off when theres carbon monoxide in the air but i wanna know the number just incase. And I just tested it to and it said 214 is that bad?
Answer
The nice thing about Nighthawk is that they have a digital readout of the CO level so that you can monitor it even if the CO level isn't high enough to trigger the alarm. Under normal circumstances, the display should always read 0. Now, there are things that could cause the reading to temporarily rise, like cooking with a gas stove or oven. But, after you are done cooking, the level should drop. If your detector is reading anything but 0 all the time, you need to find the source and have the problem corrected. I would normally red flag anything over 9 or 10 ppm. Although that is no where near lethal levels, it still indicates a problem. Long term exposure to low levels of CO is not good for you.
The nice thing about Nighthawk is that they have a digital readout of the CO level so that you can monitor it even if the CO level isn't high enough to trigger the alarm. Under normal circumstances, the display should always read 0. Now, there are things that could cause the reading to temporarily rise, like cooking with a gas stove or oven. But, after you are done cooking, the level should drop. If your detector is reading anything but 0 all the time, you need to find the source and have the problem corrected. I would normally red flag anything over 9 or 10 ppm. Although that is no where near lethal levels, it still indicates a problem. Long term exposure to low levels of CO is not good for you.
At what level does carbon monoxide become dangerous?
The Mrs.
After cooking on our new gas stove last night for approximately 30-45 minutes, my husband said that the carbon monoxide detector in our bedroom read a level of 15ppm. This is the highest we have seen it, generally speaking it doesn't go over 10ppm. At what point (in ppm) should we be concerned?
Answer
Any level of carbon monoxide is dangerous, it inhibits hemoglobin, myoglobin, and mitochondrial cytochrome oxidase (which are all VERY important!).
But typically, a concentration of as little as 0.04% (400 parts per million) carbon monoxide in the air can be fatal.
Below is a chart to help elaborate on the toxicity levels of CO and its symptoms:
* 35 ppm (0.0035%) Headache and dizziness within six to eight hours of constant exposure
* 100 ppm (0.01%) Slight headache in two to three hours
* 200 ppm (0.02%) Slight headache within two to three hours
* 400 ppm (0.04%) Frontal headache within one to two hours
* 800 ppm (0.08%) Dizziness, nausea, and convulsions within 45 minutes. Insensible within two hours.
* 1,600 ppm (0.16%) Headache, dizziness, and nausea within 20 minutes. Death in less than two hours.
* 3,200 ppm (0.32%) Headache, dizziness and nausea in five to ten minutes. Death within 30 minutes.
* 6,400 ppm (0.64%) Headache and dizziness in one to two minutes. Death in less than 20 minutes.
* 12,800 ppm (1.28%) Unconsciousness after 2-3 breaths. Death in less than three minutes.
In addition, a recent report concludes that carbon monoxide exposure can lead to significant loss of lifespan after exposure due to damage to the heart muscle.
Any level of carbon monoxide is dangerous, it inhibits hemoglobin, myoglobin, and mitochondrial cytochrome oxidase (which are all VERY important!).
But typically, a concentration of as little as 0.04% (400 parts per million) carbon monoxide in the air can be fatal.
Below is a chart to help elaborate on the toxicity levels of CO and its symptoms:
* 35 ppm (0.0035%) Headache and dizziness within six to eight hours of constant exposure
* 100 ppm (0.01%) Slight headache in two to three hours
* 200 ppm (0.02%) Slight headache within two to three hours
* 400 ppm (0.04%) Frontal headache within one to two hours
* 800 ppm (0.08%) Dizziness, nausea, and convulsions within 45 minutes. Insensible within two hours.
* 1,600 ppm (0.16%) Headache, dizziness, and nausea within 20 minutes. Death in less than two hours.
* 3,200 ppm (0.32%) Headache, dizziness and nausea in five to ten minutes. Death within 30 minutes.
* 6,400 ppm (0.64%) Headache and dizziness in one to two minutes. Death in less than 20 minutes.
* 12,800 ppm (1.28%) Unconsciousness after 2-3 breaths. Death in less than three minutes.
In addition, a recent report concludes that carbon monoxide exposure can lead to significant loss of lifespan after exposure due to damage to the heart muscle.
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