The closer the smoke outlet is to the public smoke crossing, the smaller the influence of the smoke exhaust pipe on the smoke exhaust effect. Relevant data show that the smoke exhaust pipe should be controlled within 2 meters, and 1.5 meters is the best length. Smoke crossings should also be located in advance. Generally, the smoke outlet is at a high place, or even stuffed into the ceiling, which is more beautiful. At the same time, the flue should avoid all kinds of other pipeline lines to avoid it. Guangzhou Fubang Kitchenware Equipment Engineering Co., Ltd. specializes in the sales and installation of white iron ventilation, kitchen smoke exhaust, central air conditioning duct, fire smoke exhaust, fresh air engineering plant cooling, catering deodorization, oil fume static device, stainless steel duct, galvanized duct, negative pressure fan and brand fan.