Can you imagine sitting at a stop light with the top down, beautiful sunshine pouring in and having 100 cars exhaust pipes pointed directly at you only a few feet away? Seem a little dangerous, it would be. This is exactly the result you get in and around an idling boat. Boats do not have catalytic converters and therefore deadly levels of carbon monoxide (CO) from the boat engine are sent out via the boats exhaust. Carbon monoxide is an odorless, colorless gas that cannot be seen. CO is extremely harmful to humans because it limits the ability of blood to carry oxygen. Boat manufacturers have kept the issue quiet despite paying out settlements in wrongful death lawsuits. California has adopted a law requiring new boats to have catalytic converters beginning 2010 however; this law does not require the thousands of older boats currently on the water be retrofitted. Boat manufacturers do not put CO detectors on boats because they would activate frequently and would alarm the public to these dangers. See www.skiboatdeaths.com