Similar to other poncho-like garments in Latin America, a ruana is basically a very thick, soft and sleeveless square or rectangular blanket with an opening in the center for the head to go through with a slit down the front to the hem. A ruana may or may not come with a hood to cover the head.
The International Association of Fire Chiefs recommend a carbon monoxide detector on every floor of your home, including the basement. A detector should be located within 10 feet of each bedroom door and there should be one near or over any attached garage. Each detector should be replaced every five to six years.
In many applications, ramp CO detectors must be provided in addition to the CO detectors distributed across the area. There should always be a CO detector located near the Pay Booth (where applicable). The specific gravity of carbon monoxide is practically the same as the specific gravity of air.