Maintenanceand self-cleaning

• Make the range hood perform self-cleaning every 7-10 days.
• Fill a spray can with certain kind of chemical solution and hot water in the ratio of one to two.
• Turn on one motor and let it run at a high speed (cooking time exceeds 20 minutes). The range hood must be warm when doing this.
• Aim the spray head at any point on the rotating fan blades and spray the liquid 10-15 times in succession until black oil can be seen to run into the oil cup. Then, spray 3-5 more times until the liquid running out is not black but has the color of the chemical solution.
• The mixture of chemical solution and hot water must be sprayed on the range hood's bottom and case when the device is warm, then wipe clean with a tissue or cloth.