Safety
620-241-2787
"Carbon Monoxide Alarms
are as important to home
safety as smoke alarms."
Consumer Product Safety Commission
CO is measured in ppm (parts per
million). The amount of ppm in the air
determines how deadly the gas is.
Concentration of CO in Air
(PPM=parts per million)
 Approximate Inhalation Time and Toxic
Symptoms Developed
The maximum allowable concentration for continuous exposure
for healthy adults in any 8-hour period, according to OSHA**.
200 ppm
 Slight headache, fatigue, dizziness, nausea after 2-3 hours.
400 ppm
 Frontal headaches within 1-2 hours, life threatening after 3 hours
800 ppm
 Dizziness nausea and convulsion within 45 minutes.
Unconsciousness within 2 hours. Death within 2-3 hours.
1,600 ppm
 Headache, dizziness and nausea within 20 minutes. Death
within 1 hour.
3,200 ppm
 Headache, dizziness and nausea within 5-10 minutes. Death
within 25-30 minutes.
6,400 ppm
 Headache, dizziness and nausea within 1-2 minutes. Death
within 10-15 minutes.
12,800 ppm
 Death within 1-3 minutes.
RC Heating & Cooling, Inc.           207 N. Hickory     McPherson, KS 67460           (620) 241-2787       fax (620) 241-5707