“…Few of the roughly 4.9 million rooms in 51,214 lodging properties with at least 15 rooms have (carbon monoxide) alarms…From 2010 through Nov. 8, 2102, there were 30 incidents of fire departments or government officials finding 
elevated levels of CO at U.S. hotels…in the 30 incidents, more than 1,300 people were evacuated, eight died, and at least 170 were affected by CO, treated by medical personnel or hospitalized…”
Neil Hampson was inside his room at a lodge in Alaska during a salmon fishing vacation three years ago when his carbon monoxide alarm sounded. Hampson, a Seattle doctor and expert on carbon monoxide, went to the basement and found the CO level four times higher. He says he turned off the gas for the water heater, and CO levels throughout the building “dropped precipitously.”
A plumber later found that the water heater was improperly vented, he says, and the lodge owner installed CO alarms in each sleeping room. Guests and staff at the lodge near Alaska’s Kenai River were fortunate Hampson carries an alarm which detects the odorless, colorless poison gas that can cause brain damage or be lethal.
Only a handful of state or municipal laws require them, although more than 1,300 people were evacuated nationally from hotels because of high CO levels in recent years.
CO, often called “the silent killer,” is such a threat that the National Fire Protection Association says CO alarms should be near bedrooms in every home.
For more:Â http://www.usatoday.com/story/travel/hotels/2012/11/15/hotels-carbon-monoxide-alarms/1707863/
