一、只在炒菜时才开排油烟机 ,而在烧开水、煮饭时不开。殊不知 ,排油烟机的功能不仅仅是排走烹饪油烟 ,还应该消除燃气污染(一方面是每次点火、熄火时泄漏的燃气 ,另一方面是燃气在燃烧过程中产生的废气)。特别是液化石油气 ,含有多种致癌物质 ,比烹饪油烟更有害健康 First, only when cooking open exhaust hood, and boil water, cooking is not open. As everyone knows, the function of the exhaust hood is not only to remove the cooking fumes, but also to eliminate gas pollution (on the one hand is each time the ignition, flameout gas leakage, on the other hand is the gas generated in the combustion process exhaust). In particular, liquefied petroleum gas (LPG), which contains a variety of carcinogens, is more harmful than cooking fumes