We are a Garment factory. We use the numbering process in cutting. Does this place need a Hood Chemical room if the numbering area does not produce air pollution?

If the numbering process is done by using paper-based stickers, then there is no need for a vent or air extract for chemical pollutants.
The dust emitted by the cutting process needs to be collected or extracted to improve air quality but does not need to implement any actions on chemical management.