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10

A muffler is a harmonically tuned chamber that is designed to reduce the noise created by the combustion process. Mufflers are usually designed with specific sound frequencies in mind. When a vehicle is being designed, the engineers will measure the sound frequencies emitted by the engine, and using harmonic tuning, create mufflers that specifically cancel ...


6

Is your Check Engine Light on? That's a rhetorical question, what I mean to say is that if your '04 Forester is in good tune, it really should not produce that much carbon monoxide. Also, there are really no long-term health hazzards of carbon monoxide exposure, other than death. (It binds with red blood cells in a way that prevents transport of oxygen.) ...


3

Can't really say "you'll be okay" because it's about how our body reacts, but I'd say yes, it's enough. There are underground parkings, engines are running all the time. Also you can buy a little Carbon Monoxide sensor which will yell at you if it's too much. Just type a Carbon Monoxide Sensor in ebay, there's plenty of them for a cheap price. All supposed ...


2

My math/logic may be entirely off and the calculations below ignore many factors, but here's my best shot: An average vehicle with a 3-liter engine idling for ten minutes burns 300 milliliters of fuel and this produces 690 grams of CO2. Source 690grams CO2 * 30 minutes = Your car produces: ~2100grams CO2 in 30 minutes Recommended exposure limit to CO2 is ...


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You would probably be okay, given the assumptions posted by others, like perfect air mixing throughout the garage. But are you willing to bet your life--and that of anyone else who may walk in--on assumptions like that? Remember carbon monoxide has no odor, and exhaust from a well-tuned modern engine doesn't smell much either. Buy a CO detector, and then you'...



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