Germfree manufactured a USP /USP compliant Sterile Compounding Pharmacy Cleanroom Trailer. The trailer contained two ISO 7 buffer rooms, one under positive pressure and a second under negative pressure. The Buffer rooms have the ability to be independently reconfigured to operate under positive pressure or under negative pressure. Each buffer room is served by an independent anteroom (ISO 8 for positive pressure buffer room and ISO 7 for Negative pressure buffer room) and they share a common office and entry room.