The space directly adjacent to the buffer area where non-sterile activities related to sterile compounding are performed, such as reviewing orders, storing sterile drug stock and equipment, garbing and hand washing. Once the staff member has garbed and washed their hands, they enter the buffer area. The ante area must be at least ISO 8 if it opens only into a positive pressure cleanroom (for non-hazardous CSPs), or must be ISO 7 if it opens into a negative pressure cleanroom (for hazardous CSPs).
a) Laboratory
b) Clean zone
c) Prep room
d) Ante area