1: Be sure to cut off the power supply of the range hood system when you arrive at the site. It is the top priority of safety work. Most of the large range hoods in hotels and guesthouses use 380V high-voltage power supply, and a few restaurants use 220V power supply.

2. Staffing: Reasonable arrangement can make the project progress and achieve better results. The exhaust fan is generally 2 people; Generally, there are 2 people in the filter and many people in the air duct (see their own personnel).

3. Drilling method and opening method can be used. The smaller flue adopts open mode. The larger flue is operated by a cleaning robot to completely remove the dirt in the flue.

4. Use a spatula to remove thick parts of ceiling, flue, fan and filter. Pay attention to the road conditions to avoid damage.

5: Spray special cleaning liquid for range hood once. Don't touch the human body, and take good protection.

6: Spray with a high-pressure gun of a special range hood. Obviously, there is still a little dirt left.

7: Clean it once and thoroughly remove all dirt.

Of course, what appears in front of you at this time is definitely a clean range hood system. The kitchen exhaust system is better and the fire prevention measures are more effective.