Hello, I'll give you a quotation for cleaning the smoke system: oil fume hood 21-25 yuan/m2; Transverse smoke exhaust pipe in smoke exhaust hood 21-31 yuan/m2; More than 1.4m * 1.4m 31-51 yuan/m2; Smoke exhaust vertical pipe less than 1.4m * 1.4m; 31-61 yuan/m2; 25-35 yuan/m2 at an altitude of more than 6 meters; Smoke hood apron below 6 meters at low altitude; 21-25 yuan/m2; Decorative plate water windmill 11-21 yuan/piece; Water-carrying hood has fire-proof grate 15 yuan/block; Smoke filter exhaust fan 311-511 yuan/set; Centrifugal fan/411-611 yuan below 7.5 kW/set; Wind cabinet/oil fume purifier below 7.5 kW 311-511 yuan/stove.