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Yesterday I was reading something about carbon filters, and came to a part of the reading saying Which,when it comes in charcoal combustion produces carbon monoxide (CO)is lethal. WARNING CAUTION. Be careful when placing the filter inside makes it look externally, do not place very closeto hot lamps, and near electricity be careful. CARE OF YOUR GROW Toxicity Carbon monoxide poisoning is the most common type of fatal air poisoning in many countries.Carbon monoxide is colourless, odorless, and tasteless, but highly toxic. It combines with hemoglobinto produce carboxyhemoglobin, which is ineffective for delivering oxygen to bodily tissues. Concentrations as low as 667 ppm may cause up to 50% of the body's hemoglobin to convert to carboxyhemoglobin. A level of 50% carboxyhemoglobin may result in seizure, coma, and fatality. In the United States, the OSHA limits long-term workplace exposure levels above 50 ppm. Within short time scales, carbon monoxide absorption is cumulative, since the half-life is about 5 h in fresh air (see main article). The most common symptoms of carbon monoxide poisoning may resemble other types of poisonings and infections, including symptoms such as headache, nausea, vomiting, dizziness, fatigue, and a feeling of weakness. Affected families often believe they are victims of food poisoning. Infants may be irritable and feed poorly. Neurological signs include confusion, disorientation, visual disturbance,syncope and seizures. Some descriptions of carbon monoxide poisoning include retinal hemorrhages, and an abnormal cherry-red blood hue.] In most clinical diagnoses these signs are seldom noticed. One difficulty with the usefulness of this the effect is that carbon monoxide merely corrects what would otherwise be an unhealthy appearance, since the chief effect of removing deoxygenated hemoglobin is to make an asphyxiated person appear more normal, or a dead person appear more life-like, similar to the effect of red colorants in embalming fluid. The "false" or unphysiologic red-coloring effect in anoxic CO-poisoned tissue is related to the meat-coloring commercial use of carbon monoxide, discussed below. Carbon monoxide binds to other molecules such as myoglobin and mitochondrial cytochrome oxidase. Exposures to carbon monoxide may cause significant damage to the heart and central nervous system, especially to the globus pallidus,often with long-term sequelae. Carbon monoxide may have severe adverse effects on the fetus of a pregnant woman.