The area per capita in the production workshop shall not be less than 2.0 square meters

The ground should be paved with impermeable, non-absorbent, non-toxic, non-slip materials

Reasonable mechanical ventilation facilities should be adopted to ensure that the airflow flows from the clean area to the unclean area.

The building structure and internal facilities of the filling workshop should be moisture-proof, dust-proof, and easy to clean and disinfect.

Doors and windows should be tight and made of non-deformable and corrosion-resistant materials.