Mold Testing & Inspection in Houston, TX

Carbon Monoxide Inside a Home

Carbon Monoxide is produced from incomplete combustion.  Incomplete combustion may be due to the following items:

  • A faulty or not maintained stove
  • Furnace
  • Boiler (back-drafting from the exhaust systems into the home)
  • Gas portable generators
  • Wood stoves
  • Gas powered equipment
  • Gas water heaters
  • Fireplaces
  • Automobile exhaust from an attached garage
  • Damaged or blocked chimneys and flues
  • Tobacco smoke

Proper maintenance and inspection of the above mentioned items can eliminate potential exposures to carbon monoxide poisoning. 

Carbon Monoxide is toxic to humans and pets in high concentrations.  Carbon Monoxide is colorless, odorless and tasteless.  The most common symptoms of carbon monoxide poisoning are as follows:

  • Headaches
  • Nausea
  • Vomiting
  • Dizziness
  • Fatigue
  • Sleepiness
  • Weakness
  • Confusion

The Occupational Safety and Health Administration (OSHA) Permissible Exposure Level (PEL) for carbon monoxide is 50 parts per million (ppm).

The National Institute of Occupational Safety and Health (NIOSH) PEL for carbon monoxide is 35 ppm.

The American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV) for carbon monoxide is 25 ppm. 

These values above are set for an 8 hour day, 40 hour workweek period of time.  These levels are typically not found in a household.  A range inside a residence may be 0 parts per million to 5 parts per million. 

It is extremely important that households install carbon monoxide detectors in key areas of the home to provide an early detection and warning system.  Checking of these devices should occur as the manufacturer's instruction indicate or on a minimum 6 month basis.  Batteries may need to be changed out or may have leaked.  Maintenance and detection is the key to protecting your household from carbon monoxide poisoning.    


If you have further questions or would like to set up an inspection or testing, please contact Robert J Reda & Associates LLC. 

Robert J Reda CIH, CSP, MAC
Robert J Reda & Associates LLC
Providing professional consulting services in Safety, Industrial Hygiene, and Environmental

Texas Department of Health Services Licensed Mold Assessment Consultant