As for the fume purification device, it depends on the surrounding environment of the snack bar, which is not absolute.

According to the new Industrial and Commercial Law, you can apply for an industrial and commercial license before going through environmental protection procedures. Snack bars don't need an EIA report, just a registration form.

We can't simply understand whether the noodle restaurant needs an oil fume purifier literally, but we should decide whether to install an oil fume purifier according to the actual operation of the noodle restaurant.