Carbon Monoxide Safety
Potential dangers of carbon monoxide
Carbon monoxide (CO) is a colorless, odorless, toxic gas produced when fuel burns without enough oxygen. Because you can’t see or smell it, it can build up indoors unnoticed. When inhaled, CO prevents your body from getting the oxygen it needs. Even small amounts can cause symptoms, and high levels can be deadly.
- Headache
- Dizziness
- Fatigue or weakness
- Nausea or vomiting
- Confusion or disorientation
- Blurry vision
- Chest pain
- Shortness of breath
- Flushed or red skin
If you or someone else shows these symptoms and you expect CO exposure, act fast.
- Evacuate: Get everyone to fresh air immediately.
- Call 911: Then call Avista at (800) 227-9187. Do not reenter until it's safe.
- Seek medical attention: Inform medical staff about suspected CO poisoning.
- Blocked vents or chimney
- Fireplace
- Stove
- Car
- Gas barbecue
- Portable generator
- Furnace
- Water heater
- Dryer
- Annual maintenance: Have heating systems, water heaters, and other fuel-burning appliances serviced by a qualified technician.
- Ventilation: Ensure appliances and heating equipment have adequate ventilation.
- Never use outdoor equipment indoors: Don’t use grills, generators, or gas-powered tools inside your home, garage, or basement.
Both natural gas and carbon monoxide (CO) are gases you can’t see or smell in their natural state. To help detect leaks, Avista adds Mercaptan, a sulfur-like rotten egg smell, to our natural gas. CO, however, has no added scent because it’s created when fuel burns without enough oxygen – like in a blocked vent or faulty appliance – which makes it harder to notice.
That’s why it’s important to have CO detectors.
CO detectors are your first line of defense. They monitor the air and alert you if CO levels become dangerous.
- Choose UL-listed models for safety and reliability.
- Install detectors near bedrooms, in common areas, and on every level of your home.
- Follow the manufacturer’s instructions for placement and maintenance.
- Test monthly and replace batteries as needed.
A carbon monoxide detector is not a substitute for calling 911 or Avista. If you suspect a CO leak, call 911 and then Avista at (800) 227-9187 immediately.
Watch a video: Signs of carbon monoxide poisoning