A carbon monoxide (CO) detector should be installed at an optimal height of about 5 feet above the ground, but exact placement can vary based on the manufacturer’s recommendations. Carbon monoxide is slightly lighter than air and disperses evenly throughout a room, so placing the detector at a higher level, such as on a wall or near the ceiling, can help ensure that it detects CO levels effectively. It’s important to avoid placing the detector too close to sources of fresh air, such as windows, doors, or vents, as drafts may interfere with its ability to monitor CO concentrations. If you’re installing a combination smoke and CO detector, it should be placed according to the smoke detector guidelines, which typically recommend ceiling installation. Always refer to the user manual for specific installation instructions and ensure that the detector is easily accessible for testing and maintenance.
