There is a new device now that can detect carbon monoxide inside your house. It is shaped like a night light that you plug into your wall or use batteries. It can be set to whatever level you want, and if it detects that amount of monoxide, its alarm will go off. If the alarm goes off, open a window or door and turn the fan on to air out the room and keep an eye on the detector for future levels. Carbon monoxide has no order and does not have color to it. That is why they call it the silent killer, because you do not know it is there, and by the time you find out, you will be dead. All households should have a carbon monoxide detector. They only cost $15.