no, it needs to be discharged at high altitude.

article 6.2.3 of the technical specification for environmental protection of catering industry HJ554-2111 stipulates the requirements for the cooking fume outlet of catering industry:

When the height of the building is less than or equal to 15m, the cooking fume outlet should be higher than the roof; When the height of the building is greater than 15m, the height of the oil fume outlet should be greater than 15m.