There are many kinds of pollution in our lives .Do you know aboutindoor air pollution in our lives ?Do you know how to avoid indoor air pollution ?Let me tellyou some advice ?First ,we must knowindoor air pollution is bad for our health .So we have a sense of avoiding it .Second,we should open the window often in order to keep the air fresh .It's good for us .
Third,we should sweep the foor and clean the room .Last,we should go out sometimes not stay indoors .From now on we should have good living habits .