Table a Effects of Carbon Monoxide Poisoning

Table A: Effects of Carbon Monoxide Poisoning

Concentration
of CO in Air
of CO in Air	Inhalation Time (approx) and Symptoms Developed
ppm

35The maximum allowable concentration for continuous exposure in any 8 hour period according to OSHA *.

150Slight headache after 1.5 hours.

200Slight headache, fatigue, dizziness, nausea after 2-3 hours.

400Frontal headaches within 1-2 hours, life threatening after 3 hours, also maximum parts per million in flue gas (on an air free basis) according to US Environmental Protection Agency.

800Dizziness, nausea and convulsions within 45 minutes. Unconsciousness within 2 hours. Death within 2-3 hours.

1,600 Headache, dizziness and nausea within 20 minutes. Death within 1 hour.

3,200 Headache, dizziness and nausea within 5-10 minutes. Death within 25-30 minutes.

6,400 Headache, dizziness and nausea within 1-2 minutes. Death within 10-15 minutes. 12,800 Death within 1-3 minutes.

ppm = parts per million

*OSHA Occupational Safety & Health Association

2.3 What happens when your CO Alarm detects Carbon Monoxide ?

When the Alarm detects potentally dangerous levels of CO, it flashes the red alarm light and then sounds a loud alarm if the CO persists.

Ei 220EN, Ei 225EN specifications

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