What is considered to be a safe level of carbon monoxide?

What is a safe level of carbon monoxide?

• i bought a new digital carbon monoxide detector...it has readings up to 400( not sure what the units of measurement are) it records a week's worth of c0 levels...i had it for a couple of days and decided to check it and it said the highest reading of c0 so far was 131....but it didnt go off....so im assuming that that is still a safe/inhabitable area.....the question is....what is a dangerous level of c0 and who do i call to service my gasboiler/ gas heater cause those are the only things in my house that are powered by gas....do i call my gas guy? or my heating/cooling guy? thanks in advance

• Answer:

  Carbon monoxide is measured in parts per million (ppm). Any CO levels higher than 10-20 should be alarming. Especially inside of a residence. If it recorded a CO level of 131 and didn't alarm, then you might want to look into getting a new detector. If you were home at the time the level was 131, you would be dead within a few hours. The signs/symptoms of acute (new onset) CO poisoning start out as headache, reddening of face, dizziness, and progress to nausea, vomiting, trouble walking and soon thereafter, unconsciousness and death. So yes, get a hold of a professional about your furnace, washer/dryer, or whatever your think the CO source may be. Hope this helps.