Each floor of the home needs a separate detector. If you are getting a single carbon monoxide detector, place it near the sleeping areas and make certain the alarm is loud enough to wake you up.
How do I install my CO alarm?
Follow the installation instructions found in the manufacturer's use and care booklet that accompanies the product. Proper installation is an important factor in receiving optimum performance. It's important to follow these instructions exactly.
Do CO alarms operate differently than smoke alarms?
Although they may look and sound similar, CO alarms and smoke alarms are designed and intended to detect two separate, distinct hazards. Therefore, to help protect your family from both hazards, it's important to install both UL Listed CO alarms and smoke detectors.
How do I take care of my CO alarm?
Like smoke detectors, CO alarms need to be tested regularly and cleaned as indicated in the manufacturer's use and care booklet. If the unit operates off a battery, test the detector weekly and replace the battery at least once a year.
Should I follow any safety tips for using and maintaining my CO alarms?
As with any product, read the manufacturer's use and care booklet for installation and maintenance guidelines. Keep these instructions on file for future reference.
If your unit operates off the battery, never allow anyone to "borrow" the battery. Like any appliance or power tool, a CO alarm can't work unless it has a functioning power source.
Source: epa.gov