The following text may have been generated by Optical Character Recognition, with varying degrees of accuracy. Reader beware!

O & O ® uy Real Estate Your first line of defense is to control the combustion so emissions are at the safest levels to minimize the amount of CO in your air. (Con‘t from Page RE 8) At 20% CO in the blood, the symptoms noted above should start to appear; at 35% you lose conâ€" sciousness; at 40% you die. That is pretty scary stuff, especialâ€" ly when you realize CO is the byâ€" product of combustion of all sorts of appliances: heaters, furnaces, gasoâ€" line engines, fireplaces, woodburnâ€" ing stoves, etc. Homes that have been improved with air tight windows, weatherstripâ€" ping, and caulking need special air exchanges units to allow an adequate supply of fresh air (oxygen) that comes in uninvited in older homes. If vou have reason to believe there may Natural gas, mostly methane, is "cleaning burning" under proper burning conditions and produces only water vapor and carbon dioxide â€" both of which we exhale continualâ€" Excessive CC very dangerous you $10 be in buy xXce SS1ve ive CO : detector In for vour S little > there house., as If your furnace is in a small enclosed room that was built to isoâ€" late it from a workshop or rec room, it should have either louvres in the door or access to outside air. ly However, incomplete combustion is the main culprit in production of CO, so check your home regularly for possible offenders, e.g. older stoves and furnaces. Fireplaces should also have a supâ€" ply of fresh air into the combustion chamber, otherwise they suck in expensively heated air from the room and create uncomfortable draughts. Prolonged use of kitchen or bathâ€" room exhaust fans can remove too much air, as well as, waste your expensive heated air. Never operate a gasoline engine or kerosene stove in an enclosed space. Even kerosene space heaters are suspect. I hope I have made you aware of the increasing potential of CO to kill you silently, and of the needlessness of running that risk. space are Su