The very first thing you should purchase for your home is a CO detector. Just like a smoke detector, a CO detector is best placed near bedrooms at least five feet off of the ground. CO is a neutral-density gas, meaning it doesn’t immediately flow upwards like hot gases or smoke. Despite this, it is wise to have such detectors on every floor of your home, and if they can be linked wirelessly, they can warn you and your whole family whenever it detects CO building up anywhere in your home.