1.使用时，一般应在打开燃气灶前1-2分钟启动油烟净化器。启动时应用高速档启动，启动后可根据厨房烟气大小变动高速或低速。

1. when used, the oil fume purifier should start at 1-2 minutes before opening the gas cooker. When starting, the high speed gear is used to start. After starting, it can change the speed or the low speed according to the size of the kitchen smoke.

2.油烟净化器应在做完饭燃气灶关闭后继续工作3分钟或更长，保证把房间空气换新一次。

2., the oil fume purifier should continue to work for 3 minutes or longer after the gas cooker is closed, so that the room air will be renewed.

3.燃气灶应在油烟净化器正下方，抽烟效果效率会更高。

3., gas cooker should be under the lampblack purifier. The efficiency of smoking will be even higher.

4.使用时，距油烟净化器很近的窗户应关严，把门开一条缝，防止形成比较大的空气对流，并能及时补充厨房氧气。

4. when used, the close window of the oil fume purifier should be closed, the door open a seam, prevent the formation of a larger air convection, and can replenish the kitchen oxygen in time.