Yes, there should be a hood on every stove in the restaurant. In the kitchens of restaurants and hotels, there are usually multiple stoves, and each stove will be equipped with a hood. Usually, a high-powered fan will be used to smoke the hood through pipes.

according to the regulations, all catering business operators must install and use fume purification facilities (fume hoods, fume purifiers, centrifugal fans and special fume exhaust pipes, etc.), and fume hoods should be set above the stoves, steamers, ovens (boxes) and other facilities in the kitchens of catering business operators, and exhaust pipes for fume and hot gas should be set separately.

the oil fume pollutants generated in the production process should be collected through the smoke collection hood, and discharged up to the standard after being treated by the oil fume purification facilities, and shall not be discharged at will, or discharged into urban underground pipelines and other facilities. Ensure that the fume emission of food and beverage outlets reaches the standard of "Cooking fume emission standard" (GB 18483-2111). The installed fume purification facilities shall not affect the appearance of the city and the normal life of the surrounding residents.

The specification of the restaurant hood requires

All exposed edges of the rear sealing plate, the front sealing plate, the front page, the upper chute and the lower chute of the oil screen hood should be crimped, and the rear sealing plate and the front sealing plate of the oil screen hood are connected by subsection short welding, in which the HL surface of the front sealing plate is exposed.

the front page of the oil screen hood and the front sealing plate of the oil screen hood are connected by segmented short welding, with the welding surface facing downward on the exposed front page HL of the front sealing plate, and the connecting ports of the two ends of the hood facing upward by 91 degrees respectively.

the side sealing plate of the oil fume hood at the two ends of the oil fume hood is short welded with the back sealing plate and the front page of the front sealing plate in sections, in which the front end of the front page (note: the size is 121mm) and the position where the oil groove of the back sealing plate is removed are fully welded and polished. The hood lighting lamp must have waterproof function, and the conductive wire should have a wandering threading pipe.